Kurz 410FTB, Руководство по эксплуатации

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Kurz B ‐ Series Operations Guide 6– 3
Flow Meter Configuration
Modbus Protocol Write Coil Command
By writing a 1 to the specific Modbus coil, you can trigger a zero (#0), mid (#1), span (#2), and
cycle all (#3, function 05) drift check. Only one Modbus drift check start command can run at a
time. This trigger does not require the Auto Drift Check to be ON. However, if the Auto Drift Check
is ON and currently performing a drift check, the Modbus ‐ triggered drift check will not start until
the other drift check completes.
Modbus Status Registers
Status registers are provided via Modbus (function 02) to indicate whether any of the given
options are active (1) or inactive (0).
Table 6 ‐ 1. Modbus Write Coil Commands ‐ Function 0x05 Write Single Coil,
Function 0x01 Read Coils
Coil # Description Hex
0 Start zero drift check. 000
1 Start mid ‐ span drift check. 001
2
Start span drift check.
002
3 Start drift check cycle. 003
4 Abort on ‐ going drift check. 004
5 Reserved. 005
6 Save working configuration to EEPROM 006
7 Reserved. 007
8 Start purge (requires Purge option). 008
9 Reset device totalizer 009
Table 6 ‐ 2. Modbus Status Registers – Function 0x02 Read Discrete Inputs Only
Coil # Description Hex
0 Zero drift check started. 000
1 Mid ‐ span check started. 001
2 Span check started. 002
3 Drift check cycle started. 003
4 ‐ 7 Reserved. 004 ‐ 007
8 Purge cycle started. 008
9 ‐ 15 Reserved. 009
16 RP resistance above high limit (error). 010
17 RP resistance below low limit (error). 011