Honeywell 2MLF-HO2A User Manual page 177

ATTENTION
1.
2.
R200 2MLF-HO2A, 2MLF-HD2A High Speed Counter Module User's Guide
May 2010
In the program, timer (TON) is used for safe operation of Preset value
setting and preset allowance.
In scan program of 2MLI/2MLR series, to hold data of 'CH0 current
count' and 'CH1 current count' when PLC power is off, the following
setting is necessary.
a) On Basic Parameter, set Restart Method as Warm Restart.
b) On scan program, set 'CH0 current count' and 'CH1 current count' as
Retain variable.
Honeywell
7. Programming
7.6. Program
177