Appendix
A.3 MODBUS
SENTRON PAC4200
204 Manual, 09/2008, A5E02316180B-01
A.3.3 Structure - Limit values with the function codes 0x01 and 0x02
Structure of the limit values
Table A- 4 Modbus Offset 203, Register 2: Limit Violations
Byte Bit Status Bit mask Value range Access
3 0 Limit 0 0x00000001 R
3 1 Limit 1 0x00000002 R
3 2 Limit 2 0x00000004 R
3 3 Limit 3 0x00000008 R
3 4 Limit 4 0x00000010 R
3 5 Limit 5 0x00000020 R
3 6 Limit 6 0x00000040 R
3 7 Limit 7 0x00000080 R
2 0 Limit 8 0x00000100 R
2 1 Limit 9 0x00000200 R
2 2 Limit 10 0x00000400 R
2 3 Limit 11 0x00000800 R
0 0 Limit Logic 0x01000000 R
0 1 Function block 1 at logic inputs 1 ... 4 0x02000000 R
0 2 Function block 2 at logic inputs 1 ... 4 0x04000000 R
0 3 Function block 3 at logic inputs 1 ... 4 0x08000000 R
0 4 Function block 4 at logic inputs 1 ... 4 0x10000000
0 =
No limit violation
1 =
Limit violation
R
See also
Measured variables without a time stamp with the function codes 0x03 and 0x04 (Page 196)
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