
I/O Definition
Appendix B
Block
T
ransfer and Discrete
B–7
T
able B.6
Synchronizing
Bus Error Parameters
Parameter
Number
Word
Number
Description Range Modulus
1
Voltage Match Error in Percent
±0 – 999 10
–3
2
(Step Size of 0.05 %)
±0 – 100 10
0
3
Frequency Match Error in Hz
±0 – 999 10
–3
4
(Step Size of 0.01 Hz)
±0 – 99 10
0
3 5
Synchronizing Bus to Reference Bus
Phase Match Error in Degrees
±0 to 180 10
0
6
±0 – 999 10
–3
7
Load Sharing Error
±0 – 1 10
0
8
±0 – 999 10
0
5
9
Power in Watts – Total
±0 – 999 10
3
10
±0 – 999 10
6
Synchronization Status
Bit 0 Frequency Within Limits
Bit 1 Voltage Within Limits
Bit 2 Phase Within Limits
Bit 3 Synchronization Mode Conflict Failure
Bit
Phase Rotation Mismatch Failure
6
11
Bit 5 Reserved for Product Expansion
Sixteen Bits –––
Bit 6 No Reference Bus
oltage Present
Failure
Bit 7 Synchronizing Bus No Voltage
Present Failure
Bit 8 Reference Bus Overvoltage Failure
Bit
Synchronizing Bus
Overvoltage Failure
Bit 10 – Bit 15 Reserved
12
Synchronizing Bus Average Voltage L–L in
0–999 10
0
13
olts
(same as parameter 15 in Table B.7)
0–999 10
3
8 14
Power Factor in Percent – Total
(same as parameter 1 in Table B.8)
± 0–100 10
0
15
± 0–999 10
0
9
16
Reactive Power in
AR – Total
± 0–999 10
3
17
(same as parameter
in Table B.8)
± 0–999 10
6
10 18 Reserved for Product Expansion — —
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