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PM8DIO – 8 Digital Input/Output Module


The PM8DIO module is an 8 channel digital input and 8 channel digital output module.

The inputs are isolated from the logic by bi-directional opto-couplers. The common is connected internally to either the -volts or +volts field power supply terminals using a jumper link which is situated inside the housing.

The module may be used as either a slave or master on the Modbus network. When used with a PC or PLC the module will be configured as a slave. When used with another PM8DIO module in a point-to-point configuration, the DIP switch 9 must be turned on to set the module up as a master. In this mode the PM8DIO module will automatically read/write the information from/to the other PM8DIO module.

The inputs have internal counters associated with them. These counters are 32 bit counters allowing a count value from 0 to 4294967295. The count value can be cleared by writing a zero to the associated registers or preset to any other value using the same method. The counters can also be reset automatically when read. This is done by setting on DIP switch 9 on the front panel.

Note: The count values are not battery backed-up and will be lost if power is turned off.

 

PM8DIO – 8 DIGITAL INPUTS / 8 DIGITAL OUTPUTS
Digital Inputs 8
Digital Counters 8
Counter Resolution 32 Bit
Counter frequency 1 KHz (max)
Pulse width 500usec (min)
Counter Mode UP or UP/DOWN
Digital input 0 level 0 to +6.5Vdc
Digital input 1 level +12Vdc to +24Vdc
Input Impedance 2200 ohms
Input filter Max 6553 msec.
Status Indication - inputs  LED per channel
Digital Outputs 8
Type NPN Open collector
Max Load Current 100mA per channel
Max load Voltage 36Vdc
Vce (on) Voltage 1.1V (max)
Watch dog output timer Disable or 1-255 sec  adjustable
Isolation (Field & Logic) 1500 V RMS
Status Indication - outputs LED per channel
Power supply (Field) +12Vdc to +24Vdc

 














 























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PM8DIO – 8 Digital Input/Output Module
 
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