Yaskawa 545 PLC - Manual (Page 12)

4 OPERATION
11 PLC Gateway Display Messages
4/12/94
ELOA When the PLC Gateway receives a logical output
allocation message from the DSD LAN, this error
message could appear for any of the following
reasons:
1. The internal allocation table is full and cannot
handle another allocation. The allocation table
has room for 1024 allocations. A logical
allocation uses 1 element in the table.
2. The bits specified in the allocation message
overlap with bits already allocated by
another node.
3. The bits specified by the allocation message
are not exactly the same as the bits already
allocated by this node.
EMMA This indicates a mis-match during allocation. Check the configuration in the
Texas Instruments PLC. For the base
When the PLC Gateway receives an allocation and slot specified in the allocation
message (0x10, 0x11, 0x12, 0x13, or 0x2D) from the message, the following modules are
network, it decodes the channel number into a base expected in the allocation message:
and slot number and then requests through the
5136-TI card the configuration for that base from
0x10 -LOGO- 16X, 16 point
the Texas Instruments PLC. Once the configuration Discrete Input Module
has been received, the gateway checks to make sure 0x11 -NUMO- 8WX, 8 channel
that the module in that slot is the correct one. If Register Input Module
not, then this message appears and an error 0x12 -LOGI- 16Y, 16 point
message is sent to the node that issued the Discrete Output Module
allocation message. 0x13 -NUMI- 8WY, 8 channel
Register Output Module
ENIA When the PLC Gateway receives a numeric input
allocation message, this error message could appear
for one of the following reasons:
1. The internal allocation table is full and
cannot handle another allocation. The
table has room for 1024 allocations. A
numeric allocation uses 8 elements in
the table.
2. The sub channel is out of range. It can
range from 1 to 8.
Table 7. PLC Gateway Display Messages (Continued)
MESSAGE DESCRIPTION TROUBLESHOOTING
RD 3056-10