Banner DXM100-S Series, Instruction Manual

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Modbus Configuration Registers for the Universal Inputs
Each input or output on the I/O base board has associated Modbus registers that configure its operation.
Universal Input Parameters Registers
Universal Inputs 1 2 3 4
Enable Full Scale Registers 3303 3323 3343 3363
Temperature °C/°F Registers 3304 3324 3344 3364
Input Type Registers 3306 3326 3346 3366
Threshold Registers 3308 3328 3348 3368
Hysteresis Registers 3309 3329 3349 3369
Enable Rising Registers 4908 4928 4948 4968
Enable Falling Registers 4909 4929 4949 4969
High Register for Counter Registers 4910 4930 4950 4970
Low Register for Counter Registers 4911 4931 4951 4971
Modbus Configuration Registers for the Analog Output
The I/O base board has two analog outputs that are selectable as 0 to 20 mA (factory default) or 0 to 10 V. To change the
analog output characteristic, physical jumpers must be change on the I/O board and a parameter Modbus register must be
changed.
For step by step instructions on changing the output characteristics see
Analog (DAC) Outputs for the B1 and S1 Models on
page 14.
Parameters for Analog Output 1 start at 4001 through 4008. Parameters for Analog Output 2 start at 4021 through 4028.
Table 3: Registers for analog output (4xxxx) parameters
Analog output
1
Analog output
2
Description Values
4001 4021 Maximum Analog Value
4002 4022 Minimum Analog Value
4003 4023 Enable Register Full Scale
0 = Store readings in unit-specific data
1 = Linear rate from 0 to 65535
4004 4024 Hold Last State Enable
0 = Disables Hold Last State and uses the Default Output State setting during an
error condition
1 = Sets the output to its last known value
4005 4025 Default Output State
4008 4028 Analog Output Type
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
2952
Enable Default
Communication Timeout
0 = Disable
1 = Enable
2953
Communication Default I/O
Timeout (100 ms/Count)
Number of 100 ms periods
2954 Enable Default on Power Up
0 = Disable
1 = Sends device outputs to their default condition
Analog Output Type —The analog outputs may be configured as either 0 to 20 mA outputs (default) or 0 to 10 V outputs. To
change the analog output type change the hardware jumper position and write to the Modbus register that defines the analog
output type. For analog output 1, write to Modbus register 4008, for analog output 2 write to Modbus register 4028. Write a
value of 2 (default) to select 0 to 20 mA; write a value of 3 to select 0 to 10 V.
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DXM100-Sx Wireless Modbus Slave
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