17 COMMUNICATING USING 1C FRAMES
17.5 Read and Write Extended File Register
377
17
Test (random write) (command: ET)
Specify the block number and device number to the extended file register (R) in 1-point units and write them randomly.
Message format
The following shows the message format of the request data and response data of the command.
■Request data
■Response data
There is no response data for this command.
Data specified by request data
■Command
■Message wait
Specify the delayed time of the response transmission. (Page 347 Message wait)
■Number of device points
Convert the numerical value to 2-digit ASCII code (hexadecimal), and send it from the upper digits.
Specify the number of device points within the following range:
•1 Number of device points 10
■Device number
Specify the block number and device number to be test with 7 digits. (Page 374 Device number)
■Write data
Store 4 characters per one device point.
Communication example
Write data of three points (3 words) randomly under the following conditions.
• Message wait: 0 ms
• Number of device points: 3 points (3 words)
• Device: Set R1234H to R1050 of block number 5, 1A1BH to R2121 of block number 7, and 506H to R3210 of block number
10.
(Request data)
ACPU common
ET
45H 54H
Data for the number of device points
Message wait Device No. Write data
Number of
device points
ET
45
H
54
H
30
H
5
30
H
35
H
30
H
03
30
H
33
H
05
35
H
30
H
00 0 3
32
H
33
H
34
H
41
31
H
2R
52
H
1
31
H
R
52
H
3
33
H
30
H
2
31
H
32
H
31
H
17
37
H
01 1
41
H
31
H
42
H
B1
31
H
A
31
H
1
32
H
31
H
30
H
00
30
H
12 0
35
H
30
H
36
H
60
30
H
5
R
52
H
2
32
H
Message wait
Number of
device points
Write data DeviceDevice
Write dataDevice
Write data
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