Transformer Terminal RET 541, RET 543, RET 545
1MRS755543
14
MUL Extensible multiplier
MUX Extensible multiplexer
NAT2INT Type conversion from natural binary coded input to SINT (Tap changer)
NE Comparison to greater or less
NOT Complement
OR Extensible OR connection
R_TRIG Rising edge detector
REAL_TO_* Type conversion from REAL to USINT / UINT / UDINT / SINT / INT / DINT
ROL Rotate to left
ROR Rotate to right
RS Reset dominant bistable function block
RS_D Reset dominant bistable function block with data input
SEL Binary selection
SHL Bit-shift to left
SHR Bit-shift to right
SIN Sine in radians
SINT_TO_* Type conversion from SINT to REAL / INT / DINT
SUB Subtractor
SQRT Square root
SR Set dominant bistable function block
XOR Extensible exclusive OR connection
TAN Tangent in radians
TIME_TO_* Type conversion from TIME to UDINT / TOD / REAL
TOD_TO_* Type conversion from TOD to UDINT / TIME / REAL
TOF Off-delay timer
TON On-delay timer
TP Pulse
TRUNC_REAL_TO* Truncation toward zero from REAL to DINT / INT / SINT / UDINT / UINT /
USINT
UDINT_TO_* Type conversion from UDINT to USINT / UINT / REAL
UINT_TO_* Type conversion from UINT to USINT / UDINT / REAL / BOOL
USINT_TO_* Type conversion from USINT to UINT / UDINT / REAL
WORD_TO_* Type conversion from WORD to DWORD / BYTE
Table 3: Conditioning monitoring functions available for the RET 54_
Function Description
CMBWEAR1 Circuit-breaker electric wear 1
CMBWEAR2 Circuit-breaker electric wear 2
CMCU3 Supervision function of the energizing current input circuit
CMGAS1 Gas pressure monitoring
CMGAS3 Three-pole gas pressure monitoring
CMSCHED Scheduled maintenance
CMSPRC1 Spring charging control 1
CMTCS1 Trip circuit supervision 1
CMTCS2 Trip circuit supervision 2
CMTIME1 Operate time counter 1 for the operate time used (e.g. motors)
CMTIME2 Operate time counter 2 for the operate time used (e.g. motors)
CMTRAV1 Breaker travel time 1
CMVO3 Supervision function of the energizing voltage input circuit
Table 2: Standard functions available for the RET 54_
Function Description
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