LG G3L-PUEA User Manual page 34

CHAPTER 6 COMMUNICATION FUNCTION
B) LINK-TROUBLE (_PHSxLTRBL x=high speed link no.(1~2))
This is the whole information describing whether the high speed link is running normally
by the user setting parameter. If the case to violate the condition that RUN-LINK is ON
may occur in the state RUN-LINK is ON, this will be ON and when recovered, it will be
OFF.
C) High speed link state (_PHSxSTATE[0..127] x=slave station no.(0~127))
This is the individual information describing the action mode of slave station and
displays the high speed link state of max. 127 stations same as max. number of slave
station. That is, in case that the sending/receiving of the relevant list is normal and the
action mode is RUN and having no error, this will be ON and in case of violating the
above items, it will be OFF.
2) High speed link information monitoring
It is available to monitor High speed link information by using the monitoring function after
GMWIN online connection and there are 2 ways of monitoring : one is to select the
variable monitor from the monitor menu and another one is by link parameter monitor.
A) Variable monitor
Variable monitor is the function to select the necessary items for monitoring by using
GMWIN flag monitor function. If you select the variable monitor from online monitor
items and Figure 6.26 variable registration screen appears, select the flag and select
high speed link information flag one by one from 'variable, flag list' screen to register. In
this case, as _PHSxSTATE[n] is Array type flag, the user should select the array no.
directly and the array no. means station no. of slave. 'x'means high speed link no. and
it has 1~4 range in GM1/2/3 PLC CPU and 1~2 range in GM4 PLC CPU, and 1 range
effective in GM6 PLC CPU. If you register the variable in Figure 6.26 and select 'close',
Figure 6.27 monitor screen will appear. If you press 'Start'from the tool bar on the right
side separately, monitoring starts.
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