Brand: DirectLOGIC Item: CPU Series: DL205 Port Protocol(s): DirectNETModbus RTUASCIIK-sequenceserial remote I/Oprogramming and monitoring Additional Information: Purchase D2-BAT-1 backup battery separately Communication Port and Connection Type(s): (1) RS-232 (RJ12)(1) RS-232/RS-422/RS-485 (DB15HD female) Port Speed(s): fixed at 9.6k baudup to 38.4k baud Total Memory: 30.4k words Battery Backup: Yes Programming Software: DirectSOFT programming software v6.3 or later Programming Language: Ladder Real Time Clock/Calendar: Yes User Data Memory: 14.6k words Retentive Memory: Yes Maximum Number of PID Loops: 16 Ladder Memory: 15.8k words DirectLOGIC DL205 CPU, 15.8k words ladder memory, (1) RS-232 (RJ12) and (1) RS-232/RS-422/RS-485 (DB15HD female) port(s). Purchase D2-BAT-1 backup battery separately.