Comprag А3710 [22/92] Group control and network operation

Version 5.2

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 conguring this data, restart the controller to perform the update.

Then you have to congure 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.

RX : ------------------------

TX : ------------------------

Transmission / reception.