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| MOD-MUX |
MMTCP8DIO
The MMTCP8DIO module is an 8 channel digital input and 8 channel digital output
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 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.
The format of the registers allows the status of the inputs to be read as either
single bits or all at once as a single register on the Modbus network. The 8 digital
outputs are open collector (NPN). The outputs may be used to drive lamps or
external relays when more drive capability is required. The outputs are isolated
from the logic and they share a common negative terminal.
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 MMTCP8DIO 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
PL8DIO module will automatically read/write the information from/to the other
PL8DIO module.
When used as a slave module, the outputs are written to by the Modbus master
device such as a PC or PLC. Each output can be individually switched on or off, or
all outputs can be set up at the same time by writing a single number to the
output register which represents the status of all outputs.
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 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.
The format of the registers allows the status of the inputs to be read as either
single bits or all at once as a single register on the Modbus network. The 8 digital
outputs are open collector (NPN). The outputs may be used to drive lamps or
external relays when more drive capability is required. The outputs are isolated
from the logic and they share a common negative terminal.
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 MMTCP8DIO 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
PL8DIO module will automatically read/write the information from/to the other
PL8DIO module.
When used as a slave module, the outputs are written to by the Modbus master
device such as a PC or PLC. Each output can be individually switched on or off, or
all outputs can be set up at the same time by writing a single number to the
output register which represents the status of all outputs.
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