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<Appendix 4. Link Master Functions>
277
IM 01E21A02-03EN
Q4. “AL.20” remains displayed on LCD.
The reason could be that LAS may not be on the bus, that communication with LAS is not
established, and so on.
A4-1. Check that LAS is connected to the bus. (To use this product as LAS, perform the
following operations in A4.3 (1), (2) and (3).)
A4-2. Set the LAS parameter to the operating parameter of this product. (Reference: 4.2
Network definition)
LAS
This
product
V(ST)
>
V(ST)
(4 or more)
V(MID)
>
V(MID) (4 or more)
V(MRD)
>
V(MRD) (3 or more)
A4-3. Check that the address of this product is correct. (Reference: 4.2 Network Definition)
The address of this product is;
• Outside the LAS parameter V(FUN) to V(FUN) + V(NUN).
• Not the default address (0xF8 to 0xFB).