Instruction Manual

ACR31 – Reference Manual [e-mail]
Version 1.00
www.acs.com.hk
Page 12 of 19
6.5. SPH_to_RDR_SetSleepTimeout
This command is used to request ACR31 to change the sleep timeout value to the one specified.
Offset Field Size Value Description Encrypted
0
bStartByte
1 23h Message start byte.
No
1
wLength
2 0004h
Number of extra bytes starting
from the next field for this
message.
3
bMessageType
1 6Ch
4
bTimeout
1
Sleep timeout value in seconds.
This value should be in the
range of 4 – 20. Other values
are not allowed.
4
wCheckSum
2
CRC16 checksum for all the
preceding fields.
The response to this message is RDR_to_SPH_ACK.