COMM_ REQ用下列任务来指定端口执行想要的操作:注意:因为地址偏移量存储在一-个16位的字组，全部的%W存储器类型不能用于COMM_ REQ.COMM R功能举例该例中，当%M0021是ON,-个开始于%R0032的命令块被送到CPU(0机箱，0槽)端口2(通讯任务20)。如果运行COMM_ REQ时有错误发生，%Q0110被置立。

Fusetron FRS-R-350 Dual Element Fuse 350 Amp #27402

Festo Filter LF-D-MAXI-A #10579

Norgren Filter F17-B00-A1DA, 250 PSIG, #33277

Sylvania GTE P6-20-76 Series A, 10 Amp #28610

NIB SCI Circuit Board 080-2385 180-2385 Rev G/H #25111

Opto PB-24 I/O Module 24 Channel #15389

Wabco Westinghouse Air Cylinder P68174-3040 #32307

JBL Systems Sensor Kit DD2S30 #30998

Toyoda PC Board JCI-C1HS-II #23129

JBL Systems Sensor Kit DD2T30B-3 #28752

JBL Systems Proximity Sensor Kit DP1T30A #30622

JBL Systems Sensor Kit DD2GB250-3 #30633

JBL Systems Sensor Kit DD2T18LA-3 #30985

JBL Systems Sensor Kit DD2T18LA-4 #30948

Telemecanique Contactor LPI D2510 #18647

Marathon Electric Motor UD 145TTFS8026AB, 1.5 Hp #12033

JBL Systems Cam Closed Sensor Kit DD2T18B-3 #28160

JBL Systems Sensor Kit DD2T18LA-2 #28165

JBL Systems Cam Closed Sensor Kit DD2T18B #28171

JBL Systems Sensor Kit DD2T18LA #28172

JBL Systems Sensor Kit DD2T30B #28173

Mitsubishi No Fuse Breaker NF30-SB, 30 Amp, #20745