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Doc # E107706 V1.25 9-6
NOTE: The PB1 can also be used for a Low Voltage Power Supply. It must be mounted
separately.
5. Once you have combined all the I/O modules together for the group, fasten tightly.
This final tightening will lock the whole group together as a unit.
6. Attach the right Mounting Bracket to the right side of the group using small phillips head screws
provided.
7. Then, mount the group of modules on a secure, flat surface. This procedure will ensure that all
modules stay securely connected.
9.4:
Factory
Settings
and
Reset
Button
Q
Factory Settings:
All Nexus I/O Modules are shipped with a preset address and a baud rate of 57600. See below for
addresses.
Q
Reset Button:
If there is a communication problem or if you are unsure of a module’s address and baud rate, press
and hold the RESET button for 3 seconds; the module will reset to a default address of 247 at 57600
baud rate for 30-seconds. This will enable you to interrogate the I/O using the Communicator EXT
software; see the Modbus Communicating I/O Modules User Manual.
Model # Module Factory-Set Address
1mAON4 0±1mA, 4-Channel Analog Output 128
1mAON8 0±1mA, 8-Channel Analog Output 128
20mAON4 4–20mA, 4-Channel Analog Output 132
20mAON8 4–20mA, 8-Channel Analog Output 132
8AI1 0±1mA, 8-Channel Analog Input 136
8AI2 0±20mA, 8-Channel Analog Input 140
8AI3 0±5V
dc
, 8-Channel Analog Input 144
8AI4 0±10V
dc
, 8-Channel Analog Input 148
4RO1 4 Latching Relay Outputs 156
4PO1 4 KYZ Pulse Outputs 160
8DI1 8 Digital Status Inputs (Wet/Dry) 164