ABB CMS-700 - Simple Network Management Protocol - SNMP; Reading of values; Special Values for Error Codes

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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.
Special values for error codes
In a fail situation you get error codes. Values with special meanings for branch current values
(one word, 16bit) are summarized below.
Special values 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)