Ver.1.30 PO-32L(PC)V Opto-Isolated Digital Output Board PO-32L(PC)V The PO-32L(PC)V is a 32-channel digital output interface board for the IBM PC/AT and compatible computers. It can also be installed into a CONTEC I/O expansion unit. Features Functions Opto-Isolated outputs for improved noise resistance. Output Up to 32 (8 signals x 4 groups) output signals. When installed on a personal computer (PC), these boards Output ability: up to 35VDC, 100mA per signal, max. write up to 16/32 digital signals (in two groups of eight) to an external device. The PC accesses the board for output through four arbitrarily configurable output ports. When the OUT instruction is executed to write data to any of these output ports, the corresponding latch circuit holds the data. The digital signals are then electrically insulated by the photocoupler. They are output as a group to an external device via the transistor. The signals output to the external device at this time have negative logic. The data in the latch circuit remains intact until the OUT instruction is executed again. Specification Accessories (Option) Accessories (Option) Item Specification Output Screw Terminal: EPD-37 *1 Type Opto-Isolated Open Collector Output (current sinking type) (Negative logic) Termination Panel: DTP-3(PC) Rating Voltage 35VDC (Max.) Current 100mA Max. per channel Termination Panel: DTP-4(PC) Number of Channels 32 channels (16 channels with the common) Signal Monitor for Digital I/O: CM-32(PC) Response time 1ms (Max.) Common Signal Monitor for Digital I/O: CM-32(PC)E *1 I/O address Any 4-byte boundary External power supply 12 to 24VDC ( ±15%) Note: 4mA/12V to 8mA/24V per input channel Power consumption 5VDC 50mA (Max.) *1 : The option cable PCB37P or PCB37PS is needed. Operating condition 0 to 50° C, 20% to 90% (not condensing) Connecting distance 50m (Typ.) (depending on wiring environment) Cable & Connector (Option) Dimension (mm) 163.0(L) x 122.0 (H) Weight 120g Cable & Connector (Option) Flat cable with 37-pin D-SUB connectors at either end: 163.0 PCB37P-*(1.5m, 3m, 5m) Shielded cable with 37-pin D-SUB connectors at either end: PCB37PS-*(0.5m, 1.5m, 3m, 5m) Flat cable with a 37-pin D-SUB connector at one end: PCA37P-*(1.5m, 3m, 5m) Shielded cable with a 37-pin D-SUB connector at one end: [mm] PCA37PS-*(0.5m, 1.5m, 3m, 5m) Product Configuration List Product Configuration List - Board[PO-32L(PC)V] ... 1 - This User's Manual ... 1 1 122.0 PO-32L(PC)V Ver.1.30 External Connection To connect an external device to this board, plug the cable from the device into the interface connector (CN1) shown below. C o n n e c t o r u s e d 3 7 - p i n D - S U B c o n n e c t o r ( F e m a l e ) 1 D C L C - J 3 7 S A F - 2 0 L 9 ( m f d . b y J AE ) e q u i v a l e n t 2 0 2 S c r e w n u t : U N C # 4 - 4 0 ( i n c h s c r e w ) 2 1 A p p l i ca b l e c o n n ec to r 1 7 J E - 2 3 3 7 0 - 0 2 ( D 8 C ) ( m f d . b y D D K , M a l e ) F D C D - 3 7 P ( m f d . b y H I R O S E , M a l e ) D C - 3 7 P - N ( m f d . b y J AE , M a l e ) 3 7 1 9 Interface Connector Pin Assignment To connect an external device, plug it into the 37-pin connector on the PO-32L(PC)V interface board. Com m on m i n u s pi n f or Comm on mi n u s pi n f or ON 0/1 1 +0/+1 ou t pu t por t 20 ON 2/3 +2/+3 ou t put por t O 00 2 21 O 20 O 01 3 22 O 21 O 02 4 23 O 22 +0 por t +2 por t O 03 5 24 O 23 (Ou t put ) (Ou t pu t ) O 04 6 25 O 24 O 05 7 26 O 25 O 06 8 27 O 26 O 07 9 28 O 27 O 10 10 29 O 30 O 11 11 30 O 31 O 12 12 31 O 32 +1 por t +3 por t O 13 13 32 O 33 (Ou t put ) (Ou t pu t ) O 14 14 33 O 34 O 15 15 34 O 35 O 16 16 35 O 36 O 17 17 36 O 37 Com mon pl u s pi n f or OP 0/1 18 37 OP 2/3 Com m on pl u s pi n f or +0/+1 ou t pu t por t N .C. 19 +2/+3 ou t put por t Output Circuit Output circuit The output circuit of these boards is illustrated in the following figure. The output channel is a photocoupler- isolated open-collector (sink type). You need an additional power supply that is isolated from the PC to drive these insulation circuits. The maximum output current ranting is 100mA per channel. E x t er n a l B oa r d V cc D ev i ce 12 k W 1k W P l u s E x t er n a l C om m on L oa d P ow er Su p p l y D C 1 2 V ~24 V O u t p u t P i n 1 2 k W 1k W L oa d O u t p u t P i n M i n u s C om m on 2 Ver.1.30 PO-32L(PC)V I/O Address Setting I/O Port Bit Assignment Use the on-board DIP switches (SW1 and SW2) to set the I/ Output Port Bit Assignments O base address of your board. Individual bits in SW1 and When "1" is output to a bit, the corresponding output data is SW2 correspond to the 15 high-order bits (A15 to A1) in the set to "ON." If "0" is output to the bit, the data is set to I/O base address. "OFF." Always set A1 to A0 to "0" (OFF) for the board. D 7 D 6 D 5 D 4 D 3 D 2 D 1 D 0 I/O base Output Gr oup 0 (+0 por t) addr ess S W2 S W1 +0H O04 O02 O00 O07 O06 O05 O03 O01 [9] [8] [7] [6] [5] [4] [3] [2] Output Gr oup 1 (+1 por t) +1H O17 O16 O15 O14 O13 O12 O11 O10 [17] [16] [15] [14] [13] [12] [11] [10] A15 A14 A13 A12 A11 A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 A0 Output Gr oup 2 (+2 por t) Bin a r y 0 0 0 0 0 0 1 1 0 0 0 0 0 0 0 0 O24 O22 O20 +2H O27 O26 O25 O23 O21 H exa d ecim a l 0 3 0 0 [28] [27] [26] [25] [24] [23] [22] [21] Output Gr oup 3 (+3 por t) The figure shows that the head I/O Address is set as 0300H +3H O37 O36 O35 O34 O33 O32 O31 O30 by a diagram, and this board occupies the I/O Address of [36] [35] [34] [33] [32] [31] [30] [29] 0300H-0301H. Oxx is an output signal name; numbers in brack et s [ ] ar e connector pin number s. Block Diagram Photo- coupler External digital output & (8ch, group 0) Tran- DIP sistor switch I/O address Address bus coincidence (A15~A0) Photo- circuit coupler External digital output & (8ch, group 1) Tran- sistor IOR Control IOW circuit AEN RESET Photo- coupler External digital output Data bus Data & (8ch, group 2) (D7~D0) driver Tran- sistor Photo- coupler External digital output & (8ch, group 3) Tran- sistor PO-32L(PC)V 3 O 1 F 2 F 3 4 5 6 7 8 PC/AT I/O expansion bus O 1 F 2 F 3 4 5 6 7 8 PO-32L(PC)V Ver.1.30 Example Program that makes LED connected to O00 output terminal Flow Chat as an example of use of this board. According to ON/OFF of the external switch connected to I00 input terminal turn on Start switch off is shown below. Description language is Microsoft C. In the state of switch-on, 1 is displayed on screen, LED lights up, 0 is displayed on screen in the state of switch-off, Set I/O Address and LED puts out the light. Bit Setting Of Setting Conditions Output Data I/O Address: 0300H Interrupt: unused (Please remove all the short connectors of Output Data JP1.) Connection example Bit Setting Of Output Data Output Data Positive common ( CN 1 : 1 8 p i n ) + D C 1 2 5 . 1 k O 2 4 V ~ P - o External L E D r Power supply t O 0 0 ( C N 1 : 2 p i n ) Negative common (C N 1 : 1 p in ) Program List #include void main (void) { int port ; int pidata ; port = 0x300 ; /*Set I/O Address*/ do { pidata = inp ( port ) ; /*Input data*/ printf( "%x\n", pidata ); /*Display data*/ outp( port, pidata ) /*Output data*/ }while( !kbhit() ) ; } 4