Is there a way to put all of the sample streams into standby mode via digital inputs on the 5500sc analyzer? What about Modbus?

Document ID

Document ID TE1905

Published Date

Published Date 05/16/2018
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Question
Is there a way to put all of the sample streams into standby mode via digital inputs on the 5500sc analyzer? What about Modbus?
Summary
5500sc analyzer and multiple sample streams
Answer
There is no way to place all of the measurement channels into standby mode for the 5500sc analyzer; there has to be at least one channel activated. For example, with a four stream analyzer, three channels can be set to standby by using the digital inputs but one channel must remain active.
As a work around, it would be possible to use a reserved Modbus register (#49937) called Program Sequence Code register (not listed in the manual) which will allow the user to remotely start/stop the analyzer through the module. Write 40007 (Decimal) to this register to put the analyzer in standby mode and 40008 (Decimal) to restart it.

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