Modbus Read, Write and Override Parameters plus Exception Codes
Table 10-1 Control Data Parameters
Parameter
Description
Register
Address
Data
Type
Access Data Range or
Enumerated Selection
Hex Decimal
Input #1 007B 123 FP RD In Engineering Units or
Percentage
Input #2 007C 124 FP RD In Engineering Units or
Percentage
PV, SP, Output 007A 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 10-2 will tell you which of the
available options are enabled / installed or disabled / not installed.
Table 10-2 Option Status
Parameter
Description
Register
Address
Data
Type
Access Data Range or
Enumerated Selection
Hex Decimal
Option Status
(Read only)
00B9 185 INT RD
See Figure 1 -1. 0
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 1 .to determine which options are or
are not active.
0-1
0 to 255
Convert decimal to binary
Math
0
=
not installed
1
=
installed
EXAMPLE:
2
Binary
SP Programming
installed
0
0
0
0
0
1
1
0
SP Programming
0 to 255
Convert decimal to binary
Math
0
=
not installed
1
=
installed
EXAMPLE:
Binary
SP Programming
installed
0
0
0
0
0
1
1
0
EXAMPLE:
Binary
SP Programming
installed
0
0
0
0
0
0
1
0
SP Programming
Figure 10-1 Software Option Status Information
12/04 UDC3200 Universal Digital Controller Product Manual 187
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