5. Cycle power to the device.
6. Using the Register View tab, read register 3326 to verify it is set to 3.
Example: Change Analog Output 1 to a 0 to 10 V dc Output
1. Launch the DXM Configuration Tool tool.
2. Click on the Register View tab on the left part of the page.
3. Change the Source Register selection to I/O Board Registers.
4. Set jumper 1 on the I/O base board to the 0 to 10 V position. Refer to the base board image for the analog output
jumper position.
5. Write a 3 to Modbus register 4008 on Modbus Slave ID 200 (I/O board).
6. Cycle power to the device.
7. Using the Register View tab, read register 4008 to verify it is set to 3.
5.2.2 NMOS Outputs
Pin
Output
Description
Wiring
22
NMOS Discrete Output 4
Less than 1 A maximum current at 30 V dc
ON-State Saturation: Less than 0.7 V at 20 mA
ON Condition: Less than 0.7 V
OFF Condition: Open
Output
23
NMOS Discrete Output 3
24
NMOS Discrete Output 2
35
NMOS Discrete Output 1
5.2.3 Analog (DAC) Outputs
The analog outputs may be configured as either 0 to 20 mA outputs (default) or 0 to 10 V outputs.
To change the analog (DAC) output type:
1. Remove power to the device.
2. Unplug both the USB and Ethernet connections.
3. Remove the DXM cover.
4. Change the hardware jumper position (see the table for the pin number and
I/O Base Board Connections
on page
13 for the pin locations).
5. Replace the DXM cover.
6. Plug in both the USB and Ethernet connections.
7. Restore power to the DXM.
8. Set the Output Type Select Modbus register (on the I/O board, Slave ID 200) to a value of 2 (default) to select 0 to
20 mA or a value of 3 to select 0 to 10 V. For analog output 1 write to Modbus register 4008, for analog output 2
write to Modbus register 4028 (see the table for the values).
Pin
Output
Modbus
Register
Description
19
Analog Output 1
4008
0 to 20 mA or 0 to 10 V dc output (I/O board jumper selectable)
Accuracy: 0.1% of full scale +0.01% per °C
Resolution: 12-bit
After changing the jumper position, write the appropriate value to the Modbus
registers to define your analog output to match the setting selected by the jumper.
2 = 0 to 20 mA output (default)
3 = 0 to 10 V output
20
Analog Output 2
4028
5.3 Scheduler
Use the Scheduler tab to create a calendar schedule for local register changes. Use this tab to define the days of the
week, start time, stop time, and register values. Schedules are stored in the XML configuration file, which is loaded to the
DXM Controller. Reboot the DXM Controller to activate a new schedule.
DXM100 Controller Instruction Manual
26
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