在系统程序存储区中存放着相当于计算机操作系统的系统程序。包括监控程序、管理程序、命令解释程序、功能子程序、系统诊断子程序等。由制造厂商将其固化在 EPROM 中，用户不能直接存取。它和硬件一起决定了该 PLC 的性能。除了 I/O 映象区区以外
Marposs 6316330200 Interface Card
Divelbiss UCP-30111001 Control Panel UCP30111001
Sew Eurodrive 0826385X EFO30-503 EMV-Modul 826385X
Fisher DH7201X1-A1 39A2990X012 Communication Card
MARPOSS 6830140606 51924 DECODER MODULE
Bosch 0811-405-004 Control Card PR25 0811405004
Morris & Associates Quik Chill 2000 Operator Interface
Baldor Dodge 176Q20R56 Tigear 2 Reducer 20:1
Baldor Dodge 176Q15R56 Tigear 2 Reducer 15:1
Cabletron Systems MMAC PSM-R Power Supply
Square D FAL3600712M1212 Circuit Breaker 7 Amp
Rinco Ultrasonics Advanced Control Unit Display Panel
Marposs 6316160400 Power Supply Card
Allen Bradley 1771OAD Output Module 1771-OAD
Reliance Electric 57403-F 57C403 Module 57403F
Reliance Electric 0-53325-46 Control Board 05332546
Rosemount Uniloc 1181C-06-10 Two Wire Transmitter
