Comprag D7510, Manual

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4.1.4 Group control and network operation
Group control.
With the i-LOG controller you can network several compressors via the RS485 port. Up to 16
compressors can be connected to the network. The
compressor with the network address «001» is
the «master», the other compressors are the «followers».
Set group control.
Select «ADJUST. PARAM.» In the main menu and go to the submenu «OPERATION MODE».
RUN: REMOTE/LOCAL Activate Remote
LOAD: AUTO/MANUAL Automatic
COM MODE: MODBUS MODBUS
COM ADDRESS: 001 001 for Master
Go to the «SEQ PARAM SET» submenu in the «RUN PARAMETERS» menu.
GRP:MAST/FOLLOWER
GRP SWITCH: 0002H Switching time Work order in the group
GRP NUMBER Number in the group
GRP LD: 5.2 BAR Loading pressure in the group
GRP ULD: 8.0 BAR Loading pressure in the group
GRP DELAY: 0020s Switch-on delay for the next compressor in the group
After configuring this data, restart the controller to perform the update.
Then you have to configure the controller that acts as a «FOLLOWER». Set here «COM MODE:
MODBUS» and the parameter «COM ADDRESS: 002» (002 for the 1.follower). Then select «RUN
PARAMETERS» then press «Enter» and then select «COM. STATUS“ and press «Enter». Monitoring
network activity is shown in the following table.
Transmission / reception.
RX :
TX :