... Interface,it mainly is used to be connected with PLC or other intelligent controllers with COM port communication function. ... It can be connected with several PLC. in the begining it supports the leading PLC series Mitsubishi, Omron, Siemens, Panasonic, Delta ... Memory 110KB Flash ROM Communication Port PC RS232& PLC RS485/422 & PLC RS232 Function button 14 freely configurable keys Allowable power ...