SMC Networks LECSB2-T Series - Page 425

12. ABSOLUTE POSITION DETECTION SYSTEM
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(2) Transmission error
(a) [AL. E5 ABS time-out warning]
In the ABS transfer mode, the driver processes time-out below, and displays [AL. E5] when a time-
out error occurs.
[AL. E5 ABS time-out warning] is cleared when ABSM changes from off to on.
1) ABS request off-time time-out check (applied to 32-bit absolute position data in 2-bit units
checksum)
If the ABS request signal is not turned on by the programmable PC or PLC...etc within 5 s after
ABST is turned on, this is regarded as a transmission error and [AL. E5 ABS time-out warning] is
output.
OFF
ON
OFF
ON
OFF
ON
5 s
ABSM
ABSR
ABST
[AL. E5]
Signal is not turned ON
No
Yes
2) ABS request on-time time-out check (applied to 32-bit absolute position data in 2-bit units
checksum)
If the ABSR is not turned off by the programmable PC or PLC...etc within 5 s after ABST is turned
off, this is regarded as the transmission error and [AL. E5 ABS time-out warning] is output.
OFF
ON
OFF
ON
OFF
ON
5 s
ABSM
ABSR
ABST
[AL. E5]
Signal is not turned OFF
No
Yes