Operation When A Long Timer Or Long Retentive Timer Device Is Used - Mitsubishi Electric MELSEC iQ-R Series Programming Manual

Operation when a long timer or long retentive timer device is
used
When the data to be handled exceeds the width (32 bits) of the current value, the long timer or long retentive timer operates
by using not only the area of the current value but also the areas of the previous value, contact, and coil.
Device
Timer (T)
Retentive timer (ST)
Counter (C)
Long timer (LT)
Long retentive timer (LST)
Long counter (LC)
When the BMOV instruction is used to batch-transfer current values, current values alone cannot be batch-transferred. Batch-
transfer the current values, contacts, and coils altogether and, after the batch transfer is finished, use only the current values.
When the DMOV instruction is used to batch-transfer current values, repeat the transfer of the current values alone using the
FOR to NEXT instruction.
Ex.
To batch-transfer the current values of the timer device
When the BMOV instruction is used, only current values are batch-transferred.
M0
BMOVP T0 D0
Current value
T0
Current value
T1
Current value
T2
Current value
T3
Configuration
Current value
Current value
Current value
FRT previous value
Current value
FRT previous value
Current value
Current value
K4
T0 T0
Contact Coil
T0
T1
T2
LT0
Contact Coil
LT1
Contact Coil
LC0 LC0
Coil
Contact
LC0
LC1
D0
D1
D2
D3
1.5 Precautions on Programming
1
1 OVERVIEW
57