因此，如果应用程序使用已经存在的90-30系统，就必须把第一槽留给CPU,并将占用两个槽位的电源模块放置在第1槽的RX3i CPU的右边决定不是将CPU放置第1槽，而是将其放置在其他槽位时，需要注意转移应用程序时可能出现的问题。下表列举了更换CPU槽位时对程序转移可能造成的影响。
SOLA SLS-24-024 Power Supply 2.4 AMP #7070
Telemecanique Contactor LCI-D123, #12611
Square D Control Relay 8501-L040 Series A DK, #14036
Acme Electric SPS-15-24/28 Power Supply #7526
Siemens Motor Starter 3VU1300-1MH00 #7238
Omron Cable Link C500-CN122N Vertical I/O #10990
General Electric CL25D310T Contactor #11900
Sola Power Supply SLS-24-036, 100/120 Volt AC #21048
Heater Band 29341-B, 2000 Watt. 10″ Diameter #24642
Watlow Heater Band STB5A1J1 #22434
Wilkerson Filter Lubricator F26-04-F00B L95 #31055
Square D / Telemecanique Contactor LC1 D09 #24741
Telemecanique Contactor LC1-D123, #22033
Applied Heater Band A-14B104-1 200 Watt #16609
Applied Heater Band AI-46 300 Watt #16607
Square D Breaker, 60 AMP, Series 3, #12081
Cooper Connector Assembly CHDN-EAE-T2, 8 Amp, Mini
Thermal Heater Band 0695 750 Watt #26887
Pro-Therm Heater Band 1C 450-250 BB, 750W, #26886
Watlow Heater Band STB5E3A11-T, 750 Watt #26884
