Omron CVM1 Series, Operation Manual

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66
Checking the PC Link’s Operating Conditions Section 4-2
Checking the PC Link’s
Status with LED Indicators The following table compares common LED Indicator displays with those of
the C500-LK009-V1 and C200H-LK401. (
: Lit, : Not lit, : Flashing)
Note Check the switch settings before operation. If the PC Link Unit’s node address
is duplicated on another node in the PC Link, the ERC and ERROR Indicators
will not light, but data errors will occur in the LR Area.
Indicator status Meaning
CVM1-LK401 C200H-LK401 C500-LK009-V1
(Display pattern B)
Node 0 (the polling node), the local node,
and other nodes are operating normally.
The local node is not node 0 and could
not establish communications with other
nodes after power was turned ON.
The local node is node 0 and could not
establish communications with other
nodes after power was turned ON.
Indicator status Meaning
CVM1-LK401 C200H-LK401 C500-LK009-V1
(Display pattern B)
An error occurred in a node other than the
local node and node 0.
The local node is not node 0 and a com-
munications error occurred between the
local node and node 0 (the polling node).
No equivalent Indicator
status A node address setting error occurred.
This error occurs when the node address
is set outside of the allowed range.
Single-level: 00 to 31
Multi-level: 00 to 15
LK401
RUN
ERH
THIS
LINK0
ERC
OTHER
LK401
RUN THIS
LINK0
ERROR
LINK 0
THIS
LINK
OTHER
RUN
ERROR
LK401
RUN
ERH
THIS
LINK0
ERC
OTHER
LK401
RUN THIS
LINK0
ERROR
LINK 0
THIS
LINK
OTHER
RUN
ERROR
LK401
RUN
ERH
THIS
LINK0
ERC
OTHER
LK401
RUN THIS
LINK0
ERROR
OTHER
LINK 0
THIS
LINK
OTHER
RUN
ERROR
LK401
RUN
ERH
THIS
LINK0
ERC
OTHER
LK401
RUN THIS
LINK0
ERROR
OTHER
LINK 0
THIS
LINK
OTHER
RUN
ERROR
LK401
RUN
ERH
THIS
LINK0
ERC
OTHER
LK401
RUN THIS
LINK0
ERROR
OTHER
LINK 0
THIS
LINK
OTHER
RUN
ERROR
LK401
RUN
ERH
THIS
LINK0
ERC
OTHER
LK401
RUN THIS
LINK0
ERROR
OTHER