General Monitors IR400, Manual

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Model IR400 HART
4
7.0 Status Information
The error status, which is returned via Common Practice Command #48, is shown in Table and
corresponds to Modbus register 0x02.
Byte Bit Description Class
Device Status
Bits Set
LSB 0 IR Close to Low Error 4,7
1 Negative Drift Error 4,7
2 IR is Low Error 4,7
3 IR is High Error 4,7
4 Brown Wire Short Error 4,7
5 Low Line Voltage Error 4,7
6 Failed to Calibrate Error 4,7
7 Failed to Zero Error 4,7
MSB 0 Gas Check Timeout Error 4,7
1 Active Lamp Fault Error 4,7
2 Reference Lamp Fault Error 4,7
3 Heater Failure Error 4,7
4 FLASH Checksum Error Error 4,7
5 RAM Checksum Error Error 4,7
6 Excess Negative Drift Error 4,7
7 EEPROM Checksum Error Error 4,7
Table 2: Error Status Information
These bits may be set at power up to indicate an instrument failure. They may also be set by a
failure detected during continuous background diagnostic testing.