Simple Network Management Protocol – Snmp; Special Values For Error Codes - ABB CMS-700 User Manual

Circuit monitoring system

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CMS-700 SYSTEM CIRCUIT MONITORING SYSTEM (CMS)

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Simple Network Management Protocol – SNMP

Reading of values

The protocol is applicable for the following items:

• Mains parameters

• Calculated values

• Measured branch current values

If you need to record the values of a subsequent measurement, you have to use the SNMP protocol and

the external storage system. Historical data in the device is stored with a resolution of 10s.

In a fail situation you get error codes. Values with special meanings for branch current values

(one word, 16bit) are summarized below.

Special values

7FF0h (32752d)

7FF1h (32753d)...7FFBh (32763d)

7FFCh (32764d)

7FFDh (32765d)

7FFEh (32766d)

7FFFh (32767d)

Meaning

Data pending, acquisition in progress

Reserved

The sensor is known but not accessible at the moment

Data type TrueRMS / AC / DC is disabled

Overload (beyond full range)

Forbidden (no Sensor with ID xx)

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