PCM-3730 PC/104 16-Channel Isolated Digital I/O Module PCM
Contents
1. range set switch SW1 as shown in the following table Card I O addresses SW1 Range hex Switch position 1 2 3 4 5 6 7 8 200 203 O eo e e e e e 204 207 O eo e e e e e 300 303 O O o e e e e e 3F0 3F3 O O oO O O O e e O Off 1 on default Note Switches 1 6 control the PC bus address lines as shown below Switch 1 2 3 4 5 6 7 8 Line A9 A8 A7 A6 AS A4 AB A2 Page 6 provides a PC I O port address map to help you avoid the I O addresses for standard PC devices Interrupt level JP2 Jumper JP2 controls the card s IRQ level as shown below Position X disables the interrupt JP2 Interrupt level oOoO000 0 O 0O 0O O O O E E E S the default Interrupt triggering JP4 Jumper JP4 selects the trigger edge rising or falling on which the card will trigger an interrupt Jumper settings appear below JP4 Trigger method tor Rising edge interrupt triggering Default eE A Y Falling edge interrupt triggering Interrupt source JP3 Jumper JP3 controls the card s IRQ level as shown below JP3 Interrupt source IDIO IDI1 DIO DI1 o o o O G O Setting Chamnel Connector IDIO Isolated DI channel 0 CN3 pin11 D Isolated DI channel 1 CN3 pin12 DIO TIL DI channel 0 CN2 pin 1 DIL TIL DI channel 1 CN2 pin 2 Hardware installation Warning TURN OFF your PC power supply whenever you install or remove the PCM 372. s current will sink from the external voltage The current for all channels combined exceeds 150 mA The following figure shows how to connect an external output load to the card s isolated outputs Internal circuit External circuit DIODE o E0 COM gt 1D00 DIODE 4 Ee IDOt DIODE D o IDO2 Vec o DC DC DIODE i PC357 Ly m COMMO T d NC pas t o ID07 p NG IE Relay 5v 40v 0 GND T Vv Vv PCM 3730 User s Manual Register format Programming the PCM 3730 is extremely simple Each I O channel corresponds to a bit in the card s registers To turn on an output channel you write a 1 to the corresponding PC I O port address map PC I O port address map bit To read an input port you simply read from the regist Fanos eee it To read an input port you simply read from the register EA Base eystan The card requires nine I O register addresses but you only 200 Reserved n i i i eed to access the first four registers the data registers aor aor The address of each register is specified as an offset from oar the card s base address For example BASE 0 is the 202 277 Reserved card s base address and BASE 2 is the base address 278 27F IPT2 2ndprinter port two bytes If the card s base address is 300h the register s 05 address is
3. 30 or connect and disconnect cables Installing the card in your computer 1 Turn the computer off Turn the power off to any peripheral devices such as printers and monitors 2 Disconnect the power cord and any other cables from the back of the computer 3 Remove the system unit cover see the user s guide for your chassis if necessary 4 Remove the CPU card from the chassis if necessary to gain access to the card s PC 104 connector 5 Screw the bras spacer included with the module into the threaded hole on the CPU card Do not tighten too much or the threads may be damaged 6 Carefully align the pins of the PCM 3730 with the PC 104 connector Slide the module into the commector The module pins may not slide all the way into the connector do not push too hard or the module may be damaged 7 Secure the module to the CPU card to the threaded hole in the CPU card using the included screw 8 Attach any accessories to the PCM 3730 using 20 pin flat cables 9 Reinstall the CPU card and replace the system unit cover Reconnect the cables you removed in step 2 Turn the power on This completes the hardware installation Install the software driver as described in the following section PCM 3730 User s Manual Signal connections Good signal connections can avoid a lot of unnecessary damage to your valuable PC and other hardware This chapter gives pin assignments for each of the card s connectors and sig
4. 302h See Switch and jumper settings for E Reserved information on setting the card s base address 258 2FF COM2 300 377 Reserved Register Assignments 378 37F IPT1 1st printer port Address Write Read 380 3AF Reserved BASE 0 IDO bits 0 7 IDI bits 0 7 3B0 3BF Mono Display Print adapter BASE 1 NA NA 3C0 3CF Reserved BASE 2 DObits 0 7 DI bits 0 7 3D0 3DF Color Graphics BASE 3 DO bits 8 15 DI bits 8 15 3E0 3EF Reserved 3F0 3E7 Floppy disk drive 38 3EF COMI 6 POM 3730 User s Manual
5. PCM 3730 PC 104 16 Channel Isolated Digital 1 0 Module General information Digital output The PCM 3730 offers 16 isolated digital I O channels 8 DI and 8 DO and 32 TTL digital I O channels 16 DI and 16 DO on a PC 104 module Providing 2500 V isolation each I O channels corresponds to a bit in a PC I O port making the PCM 3730 very easy to program The PCM 3730 offers one PC interrupt with jumper selectable IRQ Features 16 isolated DIO channels 8 inputs and 8 outputs 32TTL level DIO channels 16 inputs and 16 outputs e High output driving capacity High voltage isolation on isolated I O channels 2500 Voc Interrupt capacity One 20 pin connectors for isolated input channels and output channels e High sink current on isolated output channels 200 mA channel Applications Industrial ON OFF control Contact closure monitoring Switch status sensing BCD interfacing Digital I O control Industrial and lab automation Specifications Digital input 8 optically isolated inputs Input voltage 5 t o 24V Input resistance 2 Kw 0 5 W Isolation voltage 2 500 Voo Throughput 10 KHz max 16 TTL level inputs Input voltage Low 0 8 V max High 2 0 V min Input load Low 0 4 mA max at 0 5 V High 0 05 mA max at 2 7 V Throughput 30 KHz typical 8 optically isolated outputs Output voltage Open collector 5 to 40 Vae Sink current 200
6. cally isolated digital input channels and a cable to connect to the PCM 3730 s digital input ports PCLD 885 The PCLD 885 provides 16 SPST power relay channels with a maximum contact rating of AC 250 V 5 A or DC 20 V 5 A The PCLD 885 can be driven directly by the digital outputs of PC LabCards through 20 pin flat cable connectors or 50 pin OPTO 22 compatible connectors PCLD 780 This wiring terminal board makes analog or digital I O connections easy PCLD 880 The PCLD 880 is a universal screw terminal board for industrial wiring It can be used with the analog or digital ports of various PC LabCards via 20 pin flat cables or shielded round cables with DB 37 connectors Installation Initial inspection We carefully inspected the PCM 3730 both mechanically and electrically before shipment It should be free of marks and in perfect order on receipt As you unpack the PCM 3730 check it for signs of shipping damage damaged box scratches dents etc If it is damaged or fails to meet specifications notify our service department or your local sales representative immediately Also call the carrier immediately and retain the shipping carton and packing material for inspection by the carrier We will then make arrangements to repair or replace the unit Discharge any static electricity on your body before you touch the board by touching the back of the system unit grounded metal Remove the PCM 3730 module from i
7. following figure shows connections to exchange digital signals with other TTL devices PCM 3730 TTL Devices gt 3 o D GND O D GND O If you want to receive an OPEN SHORT signal from a switch or relay add a pull up resistor to ensure that the input is held at a high level when the contacts are open See the figure below 4 7K PCM 3730 DI Switch D GND 1 OV o iH PCM 3730 User s Manual Isolated Input Each of the 8 isolated digital input channels accept voltages from 5 to 24 V and have a resistance of 2 0 kw Every eight input channels share one external ground Channels 0 3 use El COM1 Channels 4 7 use El COM2 The following figure shows how to connect an external input source to the card s isolated inputs Vo External circuit Internal circuit 2K 0 5W IDIO o TS Switch PC354 Ve 2K 0 5W IDI1 o kJ A 5 24V 2 PC354 Ve 2K 0 5W IDI3 x EI COM1 o s zk PC354 Isolated Output Each of the 8 isolated digital output channels comes equipped with a darlington transistor Every eight output channels share common emitters and integral suppression diodes for inductive load actived by connecting EO COM to VDD If the external voltage 5 40 V is connected to each isolated output channel IDO and its isolated digital output turns on 200 mA per channel maximum the card
8. mA max Isolation voltage 2500 V Throughput 10 KHz max 16 TTL level outputs Output voltage Low Sink 8 mA at 0 5 V max High Source 0 4 mA at 2 4 V min Throughput 30 KHz typical Interrupt source Jumper selectable Channels 0 and 1 of Isolated DI port or Channels 0 and 1 of TTL DI port Register format BASE 0 Isolated DI O BASE 2 and BASE 3 TTL DI O Dimensions 95 mm x 90 mm Connectors One 20 pin flat cable connectors for isolated DIO Two 20 pin flat cable connectors for TTL DIO Power consumption 5 V 330 mA typical 500 mA maximum Daughterboards The PCM 3730 interfaces with a wide variety of Advantech daughterboards such as the following PCLD 786 AC DC power SSR and relay driver board This board holds eight optically isolated solid state relay modules and provides an additional eight outputs to drive external relays PCLD 785B and PCLD 885 relay output boards These boards let you control relays through the PCM 3730 s 16 bit TTL digital output channels PCLD 785B provides 24 SPDT relays while the PCLD 885 provides 16 SPST power relays z z I Ww N oo O U iS s gt s D I gt D 2 n 2 pe D o U amp 2 al z O Q D PC 104 and the PC 104 logo are trademarks of the PC 104 Consortium Part no 2003730050 1st Edition Printed in Taiwan August 1997 PCLD 782B Isolated D I Board This board provides 24 opti
9. nal connections for different applications Connector pin assignments The PCM 3730 has three on board 20 pin flat cable connectors insulation displacement mass termination See the figure on page 2 for the location of each connector Pin assignments for each connector appear in the following sections Abbreviations DO Digital output 0 Digital input D GND Digital ground IDO Tsolated digital cutout on Isolated digital input EO GND External ground for isolated output EI COML External common Vec GND for isolated input IDIO IDI3 EI COM2 External common Vec GND for isolated input IDI4 IDI7 EO COM Free wheeling common diode for isolated output IDO IDO7 Connector CN1 Digital output DOO 1 2 DO 1 DO 2 3 4 DO3 DO 4 5 6 DO5 DO 6 7 8 DO7 DO 8 9 10 DO 9 DO 10 11 12 DO 11 DO 12 13 14 DO 13 DO 14 15 16 DO 15 D GND 17 18 D GND 5V 19 20 12 V Connector CN2 Digital input DIO 1 2 DI1 DI2 3 4 DI3 DI4 5 6 DIS DI6 7 8 DI7 DI8 9 10 DI9 DI 10 11 12 DI 11 DI 12 13 14 DI 13 DI 14 15 16 DI 15 D GND 17 18 D GND 5V 19 20 12 V Connector CN3 Isolated input and output IDO 0 1 2 IDO1 IDO 2 3 4 IDO3 IDO 4 5 6 IDOS IDO 6 7 8 IDO7 EO GND 9 10 EO COM IDIO 11 12 IDI IDI2 13 14 IDIS IDI4 15 16 IDI5 IDI6 17 18 IDI7 EIl COM1 19 20 El COM2 TTL level I O The PCM 3730 has 16 TTL level digital inputs and 16 TTL level digital outputs The
10. ts protective packaging by grasping the rear metal panel Handle the card only by its edges to avoid static electric discharge which could damage its integrated circuits Keep the antistatic package Whenever you remove the card from the PC please store the card in this package for protection You should also avoid contact with materials that hold static electricity such as plastic vinyl and styrofoam Switch and jumper settings The PCM 3730 module has one function switch and three jumper settings The following sections tell how to configure the card You may want to refer to the figure below for help in identifying module components PCM 3730 REV A1L CNL CN3 CN2 Connectors Jumpers and Switches Label Function CN1 Digital cutout CN2 Digital input PCM 3730 User s Manual CN3 Isolated input output JP2 Ttemgt level JP3 Interrupt source JP4 Iteng trigger SW1 Card base address Base address selection SW1 You control the PCM 3730 s operation by reading or writing data to the PC s I O input output port addresses The PCM 3730 requires four consecutive address locations Switch SW1 sets the card s base beginning address Valid base addresses range from Hex 200 to Hex 3F0 Other devices in your system may however be using some of these addresses We set the PCM 3730 for a base address of Hex 300 at the factory If you need to adjust it to some other address
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