DSSB145 人在人前闖，刀在石上蕩。
PLC的接地端子
PLC中設有下面的2個接地端子。
:與PLC的底板連接，通常用于防止觸電，保護接地端子接地。
:與噪聲濾波器的中性點連接，在因電源干擾導致誤動作時接地的功能接地端子。 :熱如將端子正確地接地，雖有使電源的共模干擾減弱的效果，但因為接地反倒拾取了噪聲的情況也很多，因此使用時要注意。
(5) AC電源單元的布線中，設備電源單相接地時，一定將接地相側(cè)連接到L2/N（或L1/N）端子側(cè)
55P0109X032 Emerson Fisher CL6855X1-A7 Isolated Voltage Input Module (55P0109X032)
56A4592X012 Emerson Fisher Card Rack, DP CSL Backplane (56A4592X012)
57A6842X092 Emerson Fisher Trend Display MEM1 (57A6842X092)
57A6843X012 Emerson Fisher Trend Shared Memory (57A6843X012)
57A6844X142 Emerson Fisher Trend Display CPU (57A6844X142)
57A6844X152 Emerson Fisher Trend Link CPU (57A6844X152)
57A9381X072 Emerson Fisher Trend Display MEM2 (57A9381X072)
57A9382X062 Emerson Fisher Trend Link MEM1 (57A9382X062)
57A9383X062 Emerson Fisher Trend Link MEM2 (57A9383X062)
CD6021X-EB1 Emerson Fisher Indicator Controller (CD6021X-EB1)
CD6201 Emerson Fisher Op Module Control (CD6201)
CD6201X1 Emerson Fisher Final Assembly Operator Station (CD6201X1) 49A7243X0A2
CD6201X1-EB1 Emerson Fisher Operator Module Control Assembly (CD6201X1-EB1) 46A3078X032
CD6201X1-EB2 Emerson Fisher Operator Interface Station (CD6201X1-EB2)
CD6202 Emerson Fisher Indicator Display (CD6202)
CD6202X1-EA1 Emerson Fisher Indicator Control (CD6202X1-EA1)
CD7601X1-EB2 Emerson Fisher Operator Interface (CD7601X1-EB2)
CL6011X1-B1 Emerson Fisher IAC MPU Power Board (CL6011X1-B1) 30B4113X01R
CL6640X1-A2 Emerson Fisher CONTROLLER SRX DATA HIWAY (CL6640X1-A2)
CL6721X1-A1 Emerson Fisher Discrete Input Output Module (CL6721X1-A1) 41B5215X052
CL6721X1-A3 Emerson Fisher Input Output Board (CP6721X1-A3) 41B5215X102
CL6721X1-A4 Emerson Fisher Discrete Output Board (CL6721X1-A4) 41B5215X132
CL6751A2 Emerson Fisher Input Relay Module (CL6751A2) 21B5163X022
CL6751A5 Emerson Fisher Input Relay Module (CL6751A5) 21B5161X022
CL6753X1-A2 Emerson Fisher 3-32 VDC Fast Input (CL6753X1-A2)
CL6754X1-A3 Emerson Fisher Output Module (CL6754X1-A3) 12P0146X022
CL6784X1-A1 Emerson Fisher Discrete I/O Termination Panel (CL6784X1-A1) 41B7291X012