7-3
Section
Explicit Messages
101
Read data (response): The specified contents of PT memory are returned in
4-digit hexadecimal. The rightmost 2 digits (Data L) are first and the leftmost 2
digits (Data H) are second, as shown in the following diagram.
Leading address
Leading a 1
Leading a 2
Read data
0
1
0
2
1
3
1
4
2
5
2
6
02
01
14
13
26
25
7-3-4 PT Memory Write (H
→
L)
Writes the specified data to PT memory beginning at the specified word address.
The data is written to PT memory words with the leftmost byte (Data H) first and
rightmost byte (Data L) second.
Command Block
01
28
Class ID
Command
code
34
Destination node address
Service code
8A
00
Instance ID
01
00
Address L
Address H
Data H
Write data
Data L
Response Block
01
28
Source node address
Service code
No. of bytes
received
Response
code
Command
code
00
00
B4
00
02
Address L and Address H (command):
Specify the leading PT memory address where the data will be written. Specify
both of these parameters in 2-digit hexadecimal.
Address L: The rightmost 2 digits of the leading PT memory address
Address H: The leftmost 2 digits of the leading PT memory address
The max. number of bytes that can be written at one time is 248 bytes (F8 Hex).
When an OMRON Master is being used, the maximum is 240 bytes (F0 Hex).
Write data (command): The write data is the 4-digit hexadecimal data that is
written to PT memory. Data is written to PT memory beginning at the specified
Parameters
