In some systems it can be a requirement to be able to program any and all PLCs from a single connection point when the PLCs are connected together on a network. To this end a typical system may consist of a Q-Series modular PLC as a CC-Link network master, with FX3U PLCs as slaves. In this configuration it is possible to gain programming access to the FX3U PLC over CC-Link when connected to the Q PLC master as detailed below.
As stated above, it is possible to gain programming access to an FX3U PLC over a CC-Link network when physically connected to a Q-Series PLC as shown below. The connection to the Q PLC can be via either Serial or USB.
With either a GX Developer or GX IEC Developer project open, the following transfer setup configuration as shown below, is required:
- The “head I/O” number is the address of the CC-Link master module in the Q PLC rack.
- The “station number” is the station number of the FX3U PLC on the CC-Link network.
- This only works with FX3U and no other FX PLC product.