paliha
Electrical
- Oct 21, 2007
- 26
Hi,
I am involved with a project where information from an existing PLC is to be taken for the purpose of monitoring by a SCADA system. Basic information are indicated below,
Existing PLC - Siemens SIMATIC
Application - Filter control of a water treatment plant
Initially we planed for using Digital IO individually for each status information. However the contractor for the existing works says individual signals can not be provided but communication port can be provided for accessing all status data. (They agreed to use any standard protocol such as profibus, device net or modbus)
We know this is a better solution, but the issue is the existing contractor will not be available when the SCADA contractor begins work.
My question is if there is a way to check, if the status data are actually available. (before the existing contractor leaves the site)
What information should be obtained from the existing contractor so that the SCADA contractor cam proceed with the work.
Or will it be essential for the SCADA contractor to coordinate with the existing contractor.
I am involved with a project where information from an existing PLC is to be taken for the purpose of monitoring by a SCADA system. Basic information are indicated below,
Existing PLC - Siemens SIMATIC
Application - Filter control of a water treatment plant
Initially we planed for using Digital IO individually for each status information. However the contractor for the existing works says individual signals can not be provided but communication port can be provided for accessing all status data. (They agreed to use any standard protocol such as profibus, device net or modbus)
We know this is a better solution, but the issue is the existing contractor will not be available when the SCADA contractor begins work.
My question is if there is a way to check, if the status data are actually available. (before the existing contractor leaves the site)
What information should be obtained from the existing contractor so that the SCADA contractor cam proceed with the work.
Or will it be essential for the SCADA contractor to coordinate with the existing contractor.