Communications Commands and Responses
Section 5-3
5-27
5)
Test (TS)
This command returns test messages sent from the host with no change made.
The command is used for testing communications between the host and the Controller.
Command Frame Structure
STX
Node No. Command
code
“TS”
Test message
ETX BCC
1
2
2
1
1
Test message
The number of characters from 0 up to 64 max. is available.
Response Frame Structure
STX Node No.
Retry
flag
Command
code
“TS”
Response
code
“00”
Test message
ETX BCC
1
2
1
2
2
1
1
Response code
00 : Normal completion
For other response codes, refer to 5-10 Response Code List.
Test message
Returns the test message received using commands.
6)
Memory Check (MC)
This command uses the generating polynomial, X
16
+ X
12
+ X
5
+ 1 to calculate the check block
designated by a user and to compare the results with the check code attached to the check
block.
Command Frame Structure
STX Node No. Command
code
“MC”
First page of
check block
No. of
pages in
check block
ETX BCC
1
2
2
2
2
1
1
First page of check
block
Specifies the first page of the check block in HEX.
Setting range: 00h to 09h, FFh
(FFh can be specified only when using Philips’ block 4 as user memory. For details,
refer to 2-5 Tag Memory Map.)
No. of pages in check
block
Specifies the number of pages in the check block in HEX.
Setting range: 02h to 0Ch
Response frame structure
STX
Node No.
Retry
flag
Command
code
“MC”
Response
code
ETX BCC
1
2
1
2
2
1
1
Response code
75: When the check results are correct
76: When the check results are incorrect
For other response codes, refer to 5-10 Response Code List.
Note Philips’ block 4 can be used as user memory with Controller software ver-
sions 1.5 or later. The software version can be read with the Version Com-
mand (VS).
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