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Table 49: Universal input parameter Modbus registers
Universal Inputs
1
2
3
4
5
6
7
8
Enable Full Scale
3303
3323
3343
3363
3383
3403
3423
3443
Temperature °C/°F
3304
3324
3344
3364
3384
3404
3424
3444
Input Type
3306
3326
3346
3366
3386
3406
3426
3446
Threshold
3308
3328
3348
3368
3388
3408
3428
3448
Hysteresis
3309
3329
3349
3369
3389
3409
3429
3449
Enable Rising
4908
4928
4948
4968
4988
5008
5028
5048
Enable Falling
4909
4929
4949
4969
4989
5009
5029
5049
High Register for Counter
4910
4930
4950
4970
4990
5010
5030
5050
Low Register for Counter
4911
4931
4951
4971
4991
5011
5031
5051
Table 50: Universal input register ranges
Register Types
Unit
Minimum Value
Maximum Value
Discrete input/output
0
1
Universal input 0 to 10 V
mV
0
10000 *
Universal input 0 to 20 mA
µA
0
20000 *
Universal input temperature (–40 °C to +85 °C)
C or F, signed, in tenths of a degree
–400
850
Universal potentiometer
unsigned
0
65535
* Setting Enable Full Scale to 1 sets the ranges to a linear scale of 0 to 65535.
9.2.8 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
Parameters for Analog Output 1 start at 4001 through 4008. Parameters for Analog Output 2 start at 4021 through 4028.
Table 51: 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
Sure Cross
®
DXM150 and 1500-Bx Wireless Controllers
74
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