SMC Networks HRSH Series, Operation Manual

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HRX-OM-Q033
Chapter 5 Simple communication protocol function
5.8 Command explanation HRSH Series
5-20
5.8.5 Command:LOC Key-lock setting (W)
Sets key-lock of this product. This setting is different from the key-lock
information which is set by the operation display panel
.
Key-lock setting of this product just receives the command. This command
does not actually lock the keys.
This function is to make this product interchangeable with the
communication specifications of SMC’s HRG/HRGC series thermo coolers.
When not using this product as a replacement for HRG/HRGC, this function
is not needed.

Request message <Normal> (Master to Slave)
STX Slave Address Request Command Writing data ETX BCC
[STX]
XX XX
[W] [L] [O] [C]
XX XX XX XX XX
[ETX]
XX

Response message <Normal> (Slave to Master)
STX Slave Address ACK ETX BCC
[STX]
XX XX
[ACK] [ETX]
XX

Communication example
○Slave Address
：
No 1
○BCC selection
Request message Response message
Code Contents Code Contents
01 Slave Address 01 Slave Address
W Request message to write [ACK] Normal response message
LOC Key-lock setting [06h] BCC value
00001 Read information (00001
：
All locked)
[26h] BCC value
Your system This product
(Request)[STX] 01WLOC00001 [ETX] [26h]
(Response)[STX] 01[ACK] [ETX] [06h]
Data is sent and
received in ASCII
code.