PIO-16/16L(PC)V. Specification. Features. Function. Ver Opto-Isolated Digital I/O Board PIO-16/16L(PC)V

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1 Ver..0 PIO-/L(PC)V Opto-Isolated Digital I/O Board PIO-/L(PC)V The PIO-/L(PC)V is a -channel digital input and output interface board for the IBM PC/AT and compatible computers. It can also be installed into a CONTEC I/O expansion unit. Plugged in an ISA bus expansion slot on the motherboard of a personal computer, can input and output up to channels. Features Opto-Isolated input/outputs for improved noise resistance Up to (8 signals x groups) input signals Up to (8 signals x groups) output signals Two input signals can also generate interrupt requests. Output ability: up to VDC, 00mA per signal, max. Function Input When installed in a personal computer (PC), these boards accept up to / digital signals (in two groups of eight) and input them to the PC. The PC access the board for input through four arbitrarily configurable input ports. When the IN instruction is executed to read data through any of these input ports, the corresponding buffer gate opens to receive the group of digital signals from the external device. The signals sent to the PC at this time have negative logic. The user can assign two of the / input signals as interrupts for the PC. These two signals can then be used as interrupt request signals. Output When installed on a personal computer (PC), these boards write up to / 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. Input Type Output Resister Item Current required to turn ON Specification Specification Opto-Isolated Input (for current sinking output) (Negative logic) kω.ma (Min.) Current required to turn OFF 0.mA (Max.) Number of Channels Response time Type Rating Voltage Current Number of Channels Response time Common I/O address Interrupt External power supply channels ( of these can be used as interrupt signal) ( channels with the common) ms (Max.) Opto-Isolated Open Collector Output (current sinking type) (Negative logic) VDC (Max.) 00mA Max. per channel channels ( channels with the common) ms (Max.) Any -byte boundary Power consumption VDC 0mA (Max.) Operating condition Connecting distance Dimension (mm) Weight.0 Two of -,9-, or Interrupt generated at falling edge to VDC (±%) ma/v~8ma/v per input channel 0 to 0 C, 0% to 90% (not condensing) 0m (Typ.) (depending on wiring environment).0(l) x.0 (H) 0g.0 [mm]

2 PIO-/L(PC)V Ver..0 Accessories (Option) Accessories (Option) Screw Terminal: EPD- * Termination Panel: DTP-(PC) Termination Panel: DTP-(PC) Signal Monitor for Digital I/O: CM-(PC) Signal Monitor for Digital I/O: CM-(PC)E * * : The option cable PCBP or PCBPS is needed. Cable & Connector (Option) Flat cable with -pin D-SUB connectors at either end: PCBP-*(.m, m, m) Shielded cable with -pin D-SUB connectors at either end: PCBPS-*(0.m,.m, m, m) Flat cable with a -pin D-SUB connector at one end: PCAP-*(.m, m, m) Shielded cable with a -pin D-SUB connector at one end: PCAPS-*(0.m,.m, m, m) Product Configuration List Product Configuration List - Board[PIO-/L(PC)V]... - This User's Manual...

3 Ver..0 PIO-/L(PC)V External Connection Connecting the Interface Connector To connect an external device to this board, plug the cable from the device into the interface connector (CN) shown below. 9 0 C o n n e c t o r u s e d - p i n D - S U B c o n n e c t o r ( F e m a l e ) D C L C - J S A F - 0 L 9 ( m f d. b y J A E ) e q u i v a l e n t S c r e w n u t : U N C # - 0 ( i n c h s c r e w ) A p p l i c a b l e c o n n e c t o r J E ( D 8 C ) ( m f d. b y D D K, M a l e ) F D C D - P ( m f d. b y H I R O S E, M a l e ) D C - P - N ( m f d. b y J A E, M a l e ) Connector Pin Assignment To connect an external device to this board, plug the cable from the device into the -Pin connector. Common minus pin for +0/+ intput port +0 por t (Input ) + por t (Input ) Common plus pin for +0/+ input port N0 *I 00 I 0 *I 0 I 0 I 0 I 0 I 0 I 0 I 0 I I I I I I I P0 N.C N O 00 O 0 O 0 O 0 O 0 O 0 O 0 O 0 O 0 O O O O O O O P Common minus pin for +0/+ output port +0 port (Output) + port (Output) Common plus pin for +0/+ output port *I00 and *I 0 are also used as interrupt signals Input circuit The on-board photocouplers isolate internal input circuits from external devices. The input channels are to be connected with current sinking output signals. You need an additional power supply that is isolated from the PC to drive these insulation circuits. When you use a VDC power supply, each input channel consumes about ma current. With a VDC external power supply, each input channel consumes about 8mA current. Input Circuit and Output Circuit Output circuit 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 00mA per channel. V c c B o a r d D e v i c e V c c. k Ω B o a r d k Ω P l u s C o m m o n D e v i c e k Ω k Ω P l u s C o m m o n O u t p u t L o a d P o w e r S u p p l y D C V ~ V P h o t o c o u p l e r V c c. k Ω k Ω I n p u t I n p u t P o w e r S u p p l y D C V ~ V k Ω k Ω O u t p u t M i n u s C o m m o n L o a d P h o t o c o u p l e r

4 PIO-/L(PC)V Ver..0 I/O Address Setting Use the on-board DIP switches (SW and SW) to set the I/O base address of your board. Individual bits in SW and SW correspond to the high-order bits (A to A) in the I/O base address. Always set A0 to "0" (OFF) for the Board. SW SW O FF O FF 8 8 A A A A A A0 A9 A8 A A A A A A A A0 Binary Hexa decimal The figure shows that the head I/O Address is set as 000H by a diagram, and this board occupies the I/O Address of 000H- 00H. Setting Interrupt Levels This board can use two of their digital input signals as interrupt request signals. These signals issue interrupt requests to the PC. Use the on-board jumper (JP) to set interrupt levels. To disable interrupts, use lead strapping connectors to prevent input signals from being connected to specific levels. To enable interrupts, use the on-board jumper (JP) to set interrupt levels. The interrupt levels that can be set for this board are s to, 9 to,, and. You can assign up to two levels of interrupt request signals. The interrupts can correspond to input signals on a one-to-one basis. Make sure that the interrupt levels you assign to the PIO-LV Series board are not used by the PC or any other expansion board. Notes! () When using interrupts, choose interrupt levels which are not used by any other resource. () Do not plug or unplug any strapping connector on JP when the PC (or I/O expansion unit) is turned on. Enabling Interrupts Use strapping connectors to connect input signals to the desired interrupt levels. The assignable interrupt levels are ~, 9~,, and. Note, however, that 0~ cannot be used on PCs with XT (8-bit) buses. I0 () I00 () 9 JP 0 ( Example ) : To connect interrupt request signal SIG(I0) fromthe interface board to 0 on the PC/ AT, set JP as shown below: Interrupt level Interrupt signal SIG JP 9 Disabling Interrupts I nterrupt level 0 SI G J P 9 0 IBM PC/AT (input module) 0 9 Connection cable External I/O SI G(I0) SI G(I00)

5 Ver..0 PIO-/L(PC)V I/O Port Bit Assignment Input Port If input command is executed with external equipments (relay point of contact, semiconductor switch, etc.) when having short-circuited the input terminal the minus side of external power supply (external input point of contact is ON state), it will be taken in as internal logic []. Output Port By outputting internal logic [] (output command being executed), the transistor of the last stage will be in ON state. Moreover, the outputted data is latched, and it holds the state until output command is executed again. I/O base address +0H +H D D D D D D D D 0 Input Group 0 (+0 port) I0 I0 I0 I0 I0 I0 I0 I00 [9] [8] [] [] [] [] [] [] Input Group (+ port) I I I I I I I I0 [] [] [] [] [] [] [] [0] Ixx is an input signal name; numbers in brackets [ ] are connector pin numbers. I00 and I0 can also serve as interru pt signals. I/O base address +0H +H D D D D D D D D 0 O0 O0 O0 O0 O0 O0 O0 O00 [8] [] [] [] [] [] [] [] O O Output Group 0 (+0 port) Output Group (+ port) O O O O O O0 [] [] [] [] [] [] [0] [9] Oxx is an output signal name; n umber in brackets [ ] are connector pin numbers. Block Diagram DIP switch External digital input (8ch, group 0) Address bus (A~A0) I /O address coincidence circuit External digital input (8ch, group ) PC/AT I /O expansion bus IOR IOW AEN RESET Control circuit Data bus (D~D0) Data driver & Transistor External digital output (8ch, group 0) ~ 9~, Interrupt control & Transistor External digital output (8ch, group ) PIO-/L(PC)V

6 PIO-/L(PC)V Ver..0 Example Program that makes LED connected to O00 output terminal as an example of use of this board. According to ON/OFF of the external switch connected to I00 input terminal turn on switch off is shown below. Description language is Microsoft C. In the state of switch-on, is displayed on screen, LED lights up, 0 is displayed on screen in the state of switch-off, and LED puts out the light. Setting Conditions I/O Address: 000H Interrupt: unused (Please remove all the short connectors of JP.) Connection example Flow Chat Start Set I/O Address Input Data Display Data Output Data Positive common ( C N : 8 p i n ) + P o r t I 00 ( C N : p i n ) Positive common ( C N : p i n ). k O D C ~ V - External Power supply O 0 0 ( C N : p i n ) L E D Negative common ( C N : 0 p i n ) Program List #include<stdio.h> void main (void) { int port ; int pidata ; port = 0x00 ; /*Set I/O Address*/ do { pidata = inp ( port ) ; /*Input data*/ printf("%x\n", pidata ); /*Display data*/ outp( port, pidata ) /*Output data*/ }while(!kbhit() ) ; }