Data Type - Indications (Read); Data Type - Controllable Indications (Read And Write) - Siemens SICAM Q200 7KG97 Manual

Communication Modbus
2.5 Modbus Data Format

Data Type - Indications (Read)

2.5.4
The Indications data type is represented by two bits in holding registers:
[dw_Indications, 1, en_US]
Figure 2-4
Where:
•
Q: status/quality bit: 0 = OK, 1 = invalid
•
V: Value bit: 0 = OFF, 1 = ON
Status or Quality Bit Q
If the indication is invalid, the quality bit is set to 1. The value bit can be ignored in this case.
Example: The power frequency is invalid if the voltage is smaller than 15 % of the rated voltage when meas-
uring the frequency. Any limit violation indication based on this value is also invalid.
Value Bit V
The value bit indicates whether an indication is ON (=1) or OFF (=0).

Data Type - Controllable Indications (Read and Write)

2.5.5
The Controllable Indications data type is needed for:
•
The binary outputs of the SICAM Q200
•
Processing internal device commands (for example resetting the energy counters).
The holding register is used for read and write access in this context.
Use as Read Register
[dw_ControllableIndications_Read, 1, en_US]
Figure 2-5
Where:
•
Q: status/quality bit: 0 = OK, 1 = invalid
•
V: Value bit: 0 = OFF, 1 = ON
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Data Type - Indications
Data Type - Controllable Indications - Read Register
SICAM, Multifunctional Recorder, Manual
E50417-C1040-C606-A3, Edition 03.2017