NEC UM351WGi-B Command Reference Manual page 18

Response

When the command succeeds
22h 03h <ID1> <ID2> 01h <DATA01> <CKS>
Data part
DATA01

When the command fails
A2h 03h <ID1> <ID2> 02h <ERR1> <ERR2> <CKS>
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Item
Execution result
00h Ended successfully.
FFh Ended with an error (no signal switch is made).
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Description