为达到这一功能需要连接一一个电线在此端子上。请参看第2章关于“模板接地”的相关部分说明.串口CPU351、CPU352和CPU363有三个串口，一个是通过装在PLC电源模板上的连接器访问(所有的系列90-30 CPU都有标准的串口)，另外两个连接器位于面板上，标记为Port 1,Port2.CPU351、CPU352和CPU363串口可通过使用程序软件配置功能进行配置，每个口也可以使用COMM REQ进行配置。

CHASE ACME TYPE G-60 PRESSURE REGULATING VALVE 11/2″ 30

ALLEN BRADLEY 700-PLL11A1 MECHANICAL LATCH ATTACHMENT S

NUMATICS F50B-10A, 50 SERIES FILTER, 250 PSIG, 1 1/4″ N

BANNER MDSDINT-1L2 MINI-SCREEN CONTROL MODULES

FUJI BU3EHC-050L 50 Amp CIRCUIT BREAKER, NIB

COMPACTORQUE 3TS-060-60A 142 PSI ACTUATOR,

THOMAS AND BETTS 8014 EVER-LOK PLUG, 30 Amp, NIB

AMPROBE LP 3100T VARIABLE SPEED RECORDING PYROMETER

AMPROBE INSTRUMENTS P3100 RECORDING PYROMETER

PARKER F06F14BC FILTER, NIB

PACIFIC PN20 LINEAR PILLOW BLOCK BEARING, NNB

PACIFIC PN20 LINEAR PILLOW BLOCK BEARING, NIB

BUSSMANN 250A SEMI-CONDUCTOR FUSES FWP-250A , LOT O

NUMATICS R30R-04 FILTERS, NNB

ITW RANSBURG EPS-4300 DRIVE BOARD, NNB

ITW RANSBURG XEPS-4301 OUTPUT, NIB

FESTO ADVUL-40-40-PA COMPACT CYLINDER, NIB