Second Edition 32 INDUSTRIAL INPUT MODULE The GESINP-2A module offers the best solution currently available on the electronic board market with regard to interfacing between the microprocessor and industrial environment, offering a maximum number of inputs on a small surface at low cost. 32 inputs are grouped on one Euroboard, isolated by optocouplers which can work on 12, 24 and 48 V, with a maximum input current of I 5 mA. It is without a doubt the best number of inputs/occupied surface proportion and thus the most economical. Of the 32 input lines, 6 can be connected to certain bus signals such as " Reset ", " Halt " or " Interrupts ". These 6 lines are connected to the signals via a debouncing-circuit in addition to the opto-electric coupling. The input signals are connected by two 26-pin connectors (16 inputs each) compatible with our standard PC board adaptor available as an option (GESICU-1 A). Technical features • 32 industrial inputs • Four 8-channel ports • 1 500V opto-coupler isolation • Input voltage 12 V, 24 V, or 48 V (GND common) • Input current max. 1 5 mA • Optional debouncing on 6 input lines • Fully decoded address • External connection by two 26-pin flat cable connectors • Separate power lines for the 2 1/0 connectors • Single power supply: + 5 V References GESINP-2A/24: 32 industrial inputs:24V/15 mA max. GESINP-2A/48: 32 industrial inputs: 48 V/15 mA max. @ GESPAC SA, 1996 XDD-GESINP-2A 1. GENERAL INFORMATION 2. PREPARATION FOR USE, 1.1 DESCRIPTION 2.1 CONNECTOR AND JUMPER The GESINP-2A Euroboard provides the user with 32 optocoupled inputs addressable through 4 ports of 8 channels IDENTIFICATION each. Input voltage is 12 V, 24 V (GESINP-2AT24) or 48 V Table 2.1 identifies the jumpers and connectors of the (GESINP-2AT48) at a maximum current of 15 mA. GESINP-2A module. Fig. 2.1 shows their location on the Six of the 32 input lines can be connected to RES, NMI, IRQ, printed circuit. FIRQ, IRQ4 and HALT signals of the bus through a debouncing circuit. The GESINP-2A module is fully compatible with the standard G- 64 bus, it is also compatible with the GESINP-1 module and replaces it. The block diagram of fig. 1.1 illustrates the different parts of the module and their interconnections. INTERCONNECTIONS 1.2 SPECIFICATIONS Input lines - 32 optocouoled with + Vu common (6 debounced) - Separate power lines for the 16 inputs of P2 and the 16 inputs of P3 connector Access Through 4 ports of 8 channels each Isolation: 1500 V by optocoupler Input voltage: 12V/24Vor48V(GESINP-2AT48) Input current: 1 6 mA max (24 V) 7 mA max (48 V) Bus interface: - Data bus: 3 state TTL compatible - Other signals: TTL compatible Bus driver: 48 mA device type Power requirements: * 5 Vdc 300 mA typ. Operating temperature * 5' to + 55'C PCB dimensions: 100 x 160 mm Table 1.1 Specifications Fig. 2 GESINP-2A: Implementation 2.2 INPUT SIGNAL INTERFACE Table 2.2 identifies the input lines connected to P2 and P3. 1 The common user's voltage of P2 is isolated from the voltage of P3. This allows the user to have a different potential for the inputs of P2 and P3. 2 For 12 V or 24 V version, Rx value is 1.6 Kohm. For 48 V version, Rx value is 6.8 Kohm. Table 2.2 P2 and P3 connector description. 2.3 INTERFACE WITH THE G-64 BUS The GESINP-2A module interconnects directly on the (3- 64 Bus. Signals used by the module are identified in the table 2.3. For more information on the bus, refer to the G- 64/G96 Bus Specification Manual. * Not used by the GESINP-2A module Table 2.3 PI connector, G-64 Bus. 2.4 DEBOUNCED LINES 2.6 USE OF GESICU-1 module The GESICU-1 module is designed to offer a connection unit for Debounced lines can be used to activate 6 control lines of the bus. GESPAC Digital Input/Output euroboards. Table 2.7 shows the They are identified in table 2.4. Debouncing is made by MCI 4490 correspondence between GESICU-1 and the GESINP and devices; its oscillator frequency is determined by Cx and is a user's GESOUT boards. The GESICU-LA can be used to interconnect 1/0 option: signals to the G 'ESINP-2A module. Its schematic diagram is shown on fig. 2.2. Refer please to the GESICU-1 data sheet for more information. * Option used in place of Halt Ack G-64 bus signal Table 2.4 Debounced lines 2.5 ADDRESS SELECTION The base address of the module is selected by J2 in the I Kbyte field reserved for peripherals which is caracterised by VPA signal. A field of 4 addresses is required by the module as defined in table 2.5. of 256 base addresses 9642 Printed in Switzerland