
Modbus Read, Write and Override Parameters plus Exception Codes
Table 10-1 Control Data Parameters
Parameter | Register | Data | Access | Data Range or | |
Description | Address | Type |
| Enumerated Selection | |
| Hex | Decimal |
|
|
|
Input #1 | 7B | 123 | FP | RD | In Engineering Units or |
|
|
|
|
| Percentage |
Input #2 | 7C | 124 | FP | RD | In Engineering Units or |
|
|
|
|
| Percentage |
PV, SP, Output | 7A | 122 | FP | RD | In Engineering Units or |
|
|
|
|
| Percentage |
10.3 Read Software Options Status
Read
Doing a Read of register address 00B9 listed in Table
Table 10-2 Option Status
Parameter | Register | Data | Access | Data Range or | |
Description | Address | Type |
| Enumerated Selection | |
| Hex | Decimal |
|
|
|
Option Status | 00B9 | 185 | INT | RD | See Figure |
(Read only) |
|
|
|
|
|
The data field in the response message will be a decimal number from 0 to 255. Convert the decimal number to binary as shown in Figure
0 to 255
Convert decimal to binary
Dual Display
SP Programming
0 = not installed
1 = installed
Limit Controller
EXAMPLE: 3 |
|
|
|
|
|
|
| |
Binary | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 |
SP Programming – installed
Dual Display | – installed |
Figure 10-1 Software Option Status Information
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