因为PTCOIL和NTCOIL发生的变化完全由进入线圈的当前能流和上次进入线圈的能流决定(例如实例数据)，所以，不受由其他线圈或逻辑指令写入与之相关的BOOL变量的影响。因而很多用于POSCOIL和NEGCOIL的警告不用于PTCOIL和NTCOIL。.
GENERAL ELECTRIC DS3800NDAC1E1F USPP DS3800NDAC1E1F
MODICON TBXAMS620 USPP TBXAMS620
XYCOM 3515-A2H1400310?0V USPP 3515A2H14003100?V
ASEA BROWN BOVERI SAFT-103-CON USPP SAFT103CON
ACTION INSTRUMENTS AI0I8400DX33/F USPP AI0I8400DX33F
ACTION INSTRUMENTS AIOI8100 USPP AIOI8100
ASEA BROWN BOVERI 57777290 USPP 57777290
GENERAL ELECTRIC DS3800HCID USPP DS3800HCID
TELEMECANIQUE TSX-P67-3 NSFP TSXP673
RELIANCE ELECTRIC 0-54121-RV USPP 054121RV
MAGNETEK 53SHC000-0003 USPP 53SHC0000003
ELECTRO CAM Y7455A USPP Y7455A
FENNER SD4-1015-10-4 NSFP SD41015104
STENTOFON 1009703000 USPP 1009703000
GENERAL ELECTRIC THJV6DPK NSFP THJV6DPK
INDRAMAT MDD112D-N-030-N?2L-130PB0 NSFP MDD112DN030N2L1?B
GENERAL ELECTRIC 531X300CCHATM3 USPP 531X300CCHATM3
INDRAMAT TVM2.1-50-115/2?20-W1 USPP TVM2150115220W1
CONTROL TECHNIQUES CDE40HPICD USPP CDE40HPICD
