900MB Series High-Density Discrete I/O Module Modbus/RS-485 Inputs (4) Inputs (4) Twelve Discrete or or Inputs or Outputs Outputs (4) Outputs (4) Isolation Modbus RS-485 Inputs (4) or Outputs (4) Power 10-36V DC or 24V AC 901/902/903MB Multi-Channel Discrete I/O Modules■Description■Special Features These modules provide twelve discrete input■Standard Modbus RTU protocol with high-speed Active-Low Inputs and/or output channels. Isolation separates the RS-485 communication (up to 115K bps) I/O, power, and network circuits. Network Sinking Outputs ■Twelve I/O channels in a single inch-wide unit communication adheres to the industry-standard (Low-Side Switching) reduces system costs and saves panel space RS-485 Modbus RTU protocol. Both AC and DC Models power sources are supported with wide range,■High-voltage, high-current, open-drain outputs 901MB: 12 input channels nonpolarized, diode-coupled terminals. enable direct (low-side) control of external 902MB: 12 output channels devices The open-drain outputs are intended for current- 903MB: 12 input/output channels sinking or low-side switching applications. The■High-voltage buffered inputs monitor discrete buffered inputs are active-low. These models are levels from a variety of industrial devices Input the complement of the 904, 905, and 906 units Twelve input channels (901, 903 models only) ■Tandem input/output circuitry (903 models which have open-source, high-side output 0 to 35V DC only) connects input buffers with open-drain switches and active-high inputs. Socketed pull-up outputs for convenient loopback monitoring of Output resistors are easily removed or exchanged to sat- the output state Twelve output channels (902, 903 models only) isfy your application requirements. O to 35V DC■Outputs have built-in over-temperature and The 903MB model has twelve input/output over-current shut-down protection, plus active points that may be used as inputs or outputs on Network Communication clamping circuits for switching inductive loads a bit-by-bit basis. Outputs may be read back to Modbus-RTU high-speed RS-485 verify output settings.■Watchdog timers provide a configurable failsafe output state for use when host Power Requirement Combining flexible I/O types, wide I/O ranges, I/O communication is lost 10 to 36V DC, and a network interface in a single package, 24V AC makes this instrument extremely powerful. ■Three-way isolation eliminates potential Multi-channel design adds cost-efficiency and ground loops between power, I/O, and Approvals allows high-density mounting. Plus, safe, rugged network circuitry CE marked. UL, cUL listed construction makes these modules reliable for Class I; Division 2; Groups A, B, C, D.■Self-diagnostics monitor microcontroller activity use in both control room and distributed field I/O to detect operational failures (lock-up) and applications. Custom module configurations are execute a reset to restore communication also possible (consult factory for details). Tel: 248-624-1541 Fax: 248-624-9234 e-mail: sales@acromag.com www.acromag.com 24 ® BusWorks Modbus I/O ® BusWorks Modbus I/O TB4 TB3 46 45 44 43 42 41 36 35 34 33 32 31 DIGITAL IN or OUT RS485 PWR DIGITAL IN or OUT DIGITAL IN or OUT 11 12 13 14 15 16 21 22 23 24 25 26 TB1 TB2 Modbus I/O ■General■Performance■Ordering I/O Pull-ups and Socket Information ■Discrete Inputs 5.6K ohm pull-up resistor SIPs are installed in sockets (901 & 903 models only) at each port (four-channels per port). Models Input Type 901MB-0900 Excitation (per port) 12 active-low, buffered inputs, with a common con- Discrete input module External excitation voltage for each four-channel port nection. Inputs include transient suppression devices 902MB-0900 is limited to 35V or less. and series connected 100K ohm resistors, plus diode Discrete output module over-voltage clamps to the internal +5V supply. Supported Modbus Commands 903MB-0900 The command/response protocol for communicating Input Signal Voltage Range Discrete input/output module with this module adheres to the Modbus/RTU standard 0 to 35V DC, maximum. for the following Modbus Functions. Accessories Input Current Read Coil (Output) Status 900C-SIP 293µA, typical at 35V DC. Read Input Status Configuration Software Interface Package Read Holding Registers (includes software CD-ROM for Windows, RS-232/485 Input Signal Threshold Force Single Coil (Output) converter, and RS-485/three-wire cable) TTL compatible with 100mV of hysteresis, typical. Preset Single Register Low-to-High threshold is 1.7VDC, High-to-Low is 5034-225 Reset Slave 1.6VDC, typical. Limited to TTL levels of 0.8VDC USB-to-RS232 adapter. See page 41 for more info. Force Multiple Coils (Outputs) (max. LOW level) and 2.0VDC (min. HIGH level). TBK-B02 Preset Multiple Registers Optional terminal block kit, barrier strip style, 4 pcs. Input Resistance Report Slave ID 100K ohms, typical. TBK-S02 LED Indicators Optional terminal block kit, spring clamp style, 4 pcs. Input Hysteresis LEDs indicate power, status, and discrete level. PS5R-D24 100mV DC, typical. Power Requirements Power supply (24V DC, 2.1A). 10 to 36V DC, See Power Supplies on page 183.■Discrete Outputs 22 to 26V AC. (902 & 903 models only) Output Type Supply Current For more information on software, network hardware, 12 independent, open-drain, DMOS MOSFET switches and mounting accessories, please see Pages 39-41. Supply Current Draw with a common source connection that operate as 10V DC 80mA maximum low-side switches. 24V DC 40mA maximum 24V AC 70mA rms maximum Output Voltage Range 0 to 35V DC max. (0 to 500mA/channel continuous). Isolation External voltage source required. 1500V AC for 60 seconds or 250V AC continuous. 3-way isolation between I/O, network, and power Output ON Resistance circuits. 0.28 ohms maximum. Output Response Time Optional terminal blocks: barrier strip (left) and Force Single Coil: Output updates within 250µs of spring clamp (right). Cage clamp terminal is standard. receipt of a command. Force Multiple Coils: First coil updates in 250µs, followed successively by additional coils every 180µs. DIGITAL INPUT CONNECTIONS (ACTIVE LOW) DIGITAL OUTPUT CONNECTIONS 5V TTL LOGIC - INPUT CAN BE PULLED EXC 903MB LOAD UP INTERNALLY OR EXTERNALLY +5V +5V TB1 EXC EXC1 RTN CH 0 CH11 TO OTHER 3 INP 100K CHAN OF PORT CH 1 CH10 V INP RTN DIGITAL DIGITAL CH 2 CH 9 I/O I/O I/O CH 3 CH 8 5-35V RTN EXC3 902MB/903MB EXC RTN 903MB shown. ON TB4 + 901MB & 902MB OFF 12-24V DC, TB2 are similar. TYPICAL EXC2 COM DUP COM CH 4 NETWORK SPST CH 5 D RTN RELAY COMMUNICATION DIGITAL CH 6 D RTN I/O CH 7 B AC/DC A RTN TB1 TB1 POWER TB3 EXC1 EXC1 OUT INP 10 TO 36V DC CH 0 CH 0 OR 24V AC DIGITAL I/O DIGITAL I/O CH 1 NON-POLARIZED CH 1 INTERNAL INPUT SHARES SHARES CH 2 PULL-UPS ARE OPEN CH 2 RETURN RETURN CH 3 CH 3 RTN RTN RTN RTN Tel: 248-624-1541 Fax: 248-624-9234 e-mail: sales@acromag.com www.acromag.com 25 ® BusWorks Modbus I/O Modbus I/O Watchdog Timer (Network Communication)■Accessories■General Module All modules have a communication watchdog timer Specifications function. The watchdog timer is configurable for ■Configuration Tools timeout periods of up to 18 hours. This timer ■Communication Interface Acromag provides a full set of tools to help you function monitors I/O communications with the host get your modules set up and ready to install. Network Communication controller. In the event of lost communications, output Modbus-RTU protocol, RS485 (3-Wire). Standard ports optionally reset to a user-defined state or level. Software Interface Package Protocol implementation as defined under “Modicon The watchdog timer restarts with a read/write to an Modbus Reference Guide” PI-MBUS-300 Rev. J. See Page 39 for more information. I/O channel. Reference: http://public.modicon.com. Includes the following: Search on: PI-MBUS-300 for technical publication.■Environmental - Configuration Software Utility Ambient Temperature Baud Rate - Instruction manuals Operation: -25°C to +70°C (-13°F to +158°F). 2400, 4800, 9600, 14.4k, 19.2k, 28.8k, 38.4k, 57.6k, - Serial port converter Storage: -40°C to +85°C (-40°F to +185°F). 76.8k, or 115.2k baud. Default 9600 baud. - Interface cable Relative Humidity Module Addressing 5 to 95% non-condensing. 0 to 247, selectable. Default address 247.■Network Devices Radiated Field Interference Immunity (RFI) Everything you need to drive your network is Network Distance Complies with EN61000-4-3 Level 2 and EN50082-1 4000 feet without network repeater. available from Acromag: isolators, converters, (3V/M, 80 to 1000MHz AM and 900MHz keyed). signal boosters, and power sources. Nodes Electrical Fast Transient Immunity (EFT) Supports up to 32 modules without the use of a Universal 50W Power Supply (Page 39) EN61000-4-4 Level 1 and EN50082-1 network repeater. (0.5KV power, signal lines). Isolated RS-232/485 Converter (Page 40) Parity Isolated RS-485 Network Repeater (Page 40) Electrostatic Discharge (ESD) Immunity Odd, even, or none. Default setting none. EN61000-4-2 Level 3 and EN50082-1 Stop Bits (8KV/4KV air/direct discharge).■Mounting Hardware One with parity, one or two with no parity. Installation is a snap with Acromag accessories. Surge Immunity Default setting is two stop bits with no parity. EN61000-4-5 (0.5KV) and EN50082-1. DIN RAIL Bars (Page 39) Watchdog Timer (Hardware) Radiated Emissions A hardware watchdog timer is built into each module 19" Rack-Mount Kit (Page 39) Meets EN50081-1 for Class B equipment. to perform a reset if the microcontroller fails to return from an operation in a timely manner or "locks up". Approvals CE marked. UL listed for US and Canada. Class I; Division 2; Groups A, B, C, D. ■Enclosure/Physical Enclosure Self-extinguishing NYLON type 6.6 polyamide thermo- plastic UL94 V-2, color beige; general purpose NEMA Type 1 enclosure. Connectors (Removable Terminal Blocks) Wire Range: AWG #12-24, stranded or solid copper. Dimensions 1.05W x 4.68H x 4.35D inches 26.7W x 118.9H x 110.5D mm. DIN Rail Mounting DIN rail mount, Type EN50022; "T" rail (35mm). Shipping Weight 1 pound (0.45 Kg) packed. A test page simplifies diagnostics with a live visual display of the module’s input and output values. Tel: 248-624-1541 Fax: 248-624-9234 e-mail: sales@acromag.com www.acromag.com 23 A B D D COM COM TB3 TB2 TB4 TB1 900MB Series 900MB Series Technical Diagrams TB4 TB3 Acromag 46 45 44 43 42 41 36 35 34 33 32 31 RUN "T" Rail Din Mounting ST Din EN 50022, 35mm DFT RS485 PWR 0 1 2 3 C L 11 12 13 14 15 16 21 22 23 24 25 26 TB2 TB1 3.90 1.05 (99.1) (26.7) 4.35 (110.5) NOTE: ALL DIMENSION ARE IN INCHES (MILLIMETERS) PERSONAL COMPUTER W/ WINDOWS 95/98 OR NT CAUTION: DO NOT CONNECT THE RS-232 SERIAL CABLE DIRECTLY TO THE PC WITHOUT RS-232 TO RS-485 CONVERTER PORT CONNECTOR CABLE 5034-202 THE CONVERTER, OR DAMAGE TO PC RUNNING MODEL 5034-214 AT BACK OF PC THE MODULE MAY RESULT. ACROMAG MODBUS CONFIG SOFTWARE INSTALL MODBUS CONNECT THE RS-232 CONNECT THE RS-485 CONFIGURATION SIDE OF CONVERTER SIDE OF CONVERTER SOFTWARE TO THE PC TO THE CABLE USB-to-RS232 Adapter 900C-SIP COMMUNICATION CONNECTIONS A B C CONNECT WIRES AS SHOWN COM D D WIRE COLOR RS-485 TB4 TB4 TB3 A RED D RUN/PWR LED (GREEN) Acromag B BLACK D RUN 46 45 44 43 42 41 36 35 34 33 32 31 STATUS LED (YELLOW) ST C GREEN COM DFT RS485 DEFAULT MODE SWITCH - PWR 01 PUSH FOR DEFAULT MODE. REFER TO THE USER'S MANUAL Model 5034-225 2 3 THAT CAME WITH YOUR MODULE STATUS LED FLASHES IN ANY 900MB MODULE TO COMPLETE THE MODULE'S DEFAULT MODE. USB-to-RS232 adapter POWER AND I/O CONNECTIONS Length: 3.15 in (8.0 cm) Height: 0.80 in (2.03 cm) R 11 12 13 14 15 16 21 22 23 24 25 26 Width: 1.75 in (4.44 cm) Weight: 1.6 oz (45.36 g) TB1 TB2 TB1 Tel: 248-624-1541 Fax: 248-624-9234 e-mail: sales@acromag.com www.acromag.com 38 ® BusWorks Modbus I/O 2.34 (59.4) 3.75 (95.3) 4.68 (118.9) TB1 TB4 TB3 TB2 COM COM D D B A ® BusWorks Modbus I/O 35.3 4-ø4.5 10-ø6.5 Modbus I/O ■Ordering Information Software Configuration Kit 900C-SIP Interface Package Software Interface Package Software Interface Package. Model No. 900C-SIP Includes Configuration Software (5034-186), ® This package includes Windows Configuration Non-isolated RS-232 to RS-485 Serial Port Converter RS-485 Cable Software, an RS-232-to-485 Serial Port (5034-214), and RS-485 Cable (5034-202). (DB-9) Converter, and an RS-485 Signal Cable. These Items can also be ordered separately below. components provide everything you need to set 5034-186 up a Series 900 I/O module from your desktop Configuration Software for Windows (95/98/ME, NT4, 2000) on CD-ROM. PC before installing it on the network. RS-232 to RS-485 Converter 5034-214 (non-isolated) Non-isolated RS-232 to RS-485 Serial Port Converter, RS-232/485 Converter RS-485 DB-9F to DB-9F. Configuration Software (non-isolated) to 3-wire for Windows 95/98/NT 5034-202 RS-485 to 3-wire Cable Converter, DB-9M to 3 x 12AWG RS-485 Cable, 8 ft. 5034-214 5034-202 ■Ordering Information Universal 50W Network Power PS5R-D24 Power Supply Universal Power Supply The PS5R-D24 is the Top View Side View (dimensions in mm) (dimensions in mm) ideal power source 3.8 90 to drive your 80 13 13 13 13 network. Input Power Requirement Universal power DC ON 85 to 264V AC, V.ADJ 105 to 370V DC Output 24V DC, 2.1A (50W) 6 M3.5 Terminal Screws 95 12 ■Ordering Information DIN-Rail Mounting Hardware 20RM-16-DIN Mounting 19" rack-mount kit with DIN rail. DIN RAIL 3.0 For your convenience, Acromag offers several DIN RAIL 16.7 mounting accessories to simplify your system DIN rail strip, Type T, 3 inches (75mm) or installation. Our 19” rack-mount kit provides a 16.7 inches (425mm) clean solution for mounting your I/O modules and a power supply. Or you can buy precut DIN rail strips for mounting on any flat surface. Dimensions in inches (mm). Tel: 248-624-1541 Fax: 248-624-9234 e-mail: sales@acromag.com www.acromag.com 39 7.35 5 60 75 900MB Series Specifications 4SCC-TTM x RS-232 to RS-485 Baud Rates Isolated Signal Switch-selectable from 300 to 38.4K baud. Converter Duplex Half duplex only. This unit provides an isolated interface between Network Termination Resistors the host PC’s RS-232 port and RS-485 Modbus Two terminal blocks and 120 ohm resistors provided to network devices. Signal conversion is bidirectional terminate both ends of the RS-485 network. with operation that is transparent to all devices. Wiring Connectors The RS-485 network supports up to 32 devices Terminal blocks with screw clamps for 14-26AWG. (including the 4SCC-TTM Converter) across 4000 foot distances. Installation of additional network Operating Temperature Range -25 to 60°C (-13 to 140°F). devices or extending the distance requires the 4SCR-TTM Network Repeater. Isolation Withstands 1500V AC surge for 60 seconds (250V AC or 354V DC continuous). ■Ordering Information 4SCC-TTM-1 Signal Converter, 115V AC (power cord included) 4SCC-TTM-2 Signal Converter, 230V AC (power cord included) Dimensions in inches (mm). 5020-924 Signal Cable, 8ft. long, DB-9 to three wires. Shipping Weight Connects PC’s RS-232 port to 4SCC-TTM-x. 3.0 lbs. (1.4 kg) packed. Specifications 4SCR-TTM x RS-485 to RS-485 Baud Rates Isolated Network Switch-selectable from 300 to 38.4K baud. Repeater Duplex Half duplex only. This unit isolates and boosts RS-485 signals to Network Termination Resistors extend communication distances or increase the Two terminal blocks and 120 ohm resistors provided to number of devices on the network. Each Repeater terminate both ends of the RS-485 network. permits the addition of a network branch with up RS-485 Wiring Connectors to 32 devices (including the 4SCR-TTM) and will Terminal blocks with screw clamps for 14-26AWG. transmit RS-485 signals another 4000 feet. Operation is transparent to all devices and no Power Wiring Connections Terminal block with screw clamps for 12-18AWG. handshaking is required. Two terminal blocks are provided for 120 ohm resistors to terminate both Operating Temperature Range ends of the network branch. -25 to 60°C (-13 to 140°F). Isolation Withstands 1500V AC surge for 60 seconds (250V AC or 354V DC continuous). ■Ordering Information 4SCR-TTM-1 Signal Converter, 115V AC power Dimensions in inches (mm). 4SCR-TTM-2 Shipping Weight Signal Converter, 230V AC power 3.0 lbs. (1.4 kg) packed. 40LC-GBW-1 115V AC power cord Tel: 248-624-1541 Fax: 248-624-9234 e-mail: sales@acromag.com www.acromag.com 40 ® BusWorks Modbus I/O ® BusWorks Modbus I/O Modbus I/O System Connection USB-to-RS232 Adapter Model 5034-225 USB-to-RS232 adapter Length: 3.15 in (8.0 cm) Isolated RS-232/485 Height: 0.80 in (2.03 cm) Signal Converter Width: 1.75 in (4.44 cm) RS-232 Acromag Model No. 4SCC-TTM Weight: 1.6 oz (45.36 g) RS-485 Daisy-Chain Topology RS-485 Network: Up to 32 devices, 4000ft. max. Extending the Network Isolated RS-485 Network Repeater Acromag Model No. 4SCR-TTM Network Branch: To Network Host Additional 32 devices, 4000ft. extension RS-485 RS-485 Tel: 248-624-1541 Fax: 248-624-9234 e-mail: sales@acromag.com www.acromag.com 41