Quick Reference
Appendix E
E-24
Control Word 01 Bit Descriptions: Status Bits
00
- Equation (Set by User)
Independent Gain =0
Dependent Gain = 1
01
- Mode (Set by User)
Auto = )
Manual = 1
02
- Control Action (Set by User)
Direct (SP-PV) = 0
Reverse (PV-SP) = 1
03
- Output Limiting (Set by User)
No - 0
Yes = 1
04
- Set Output (Set by User)
Inhibited = 0
Enabled = 1
05
- Cascade Bit (Set by User)
No = 0
Secondary Cascade Loop = 1
3
06
- Derivative Uses Error (set by User)
PV = 0
E = 1
3
07
- Input Format (for Series C or later)
Binary = 0
BCD = 1
10
- Dead Band (set by Instruction)
Out of DB = 0
Within DB = 1
1
11
- Maximum Output Alarm (set by Instruction)
Within limit = 0
Above limit = 1
1
12
- Minimum Output Alarm (Set by Instruction)
Within limit = 0
Below limit = 1
1
13
- Set point Error (Set by Instruction)
In range = 0
Out of range = 1
1
14
- Reserved
2
15
- Done bit (set by Instruction)
Not executed = 0 Executed = 1
1
16
- Reserved
2
17
- Enabled bit (set by Instruction)
Not enabled = 0
Enabled = 1
1
Do not change. Values are set by PID function.
Do not change Reserved bits.
Do not change while the processor is operating.
1
2
3
PID Control Block
