Commands
20
13
-0
4
41
Single read words (SR):
Response:
The R/W head makes one attempt to read <WordNum> 32-bit words from the
address<WordAddr>.
Byte
Contents
Bit no.
7
6
5
4
3
2
1
0
Byte 0
Command code (10h)
0
0
0
1
0
0
0
0
Byte 1
Word number/Channel/Toggle bit
<WordNum>
<Channel>
<T>
Byte 2
Word address
<WordAddr>(high byte)
Byte 3
Word address
<WordAddr> (low byte)
Byte
Contents
Bit no.
7
6
5
4
3
2
1
0
Byte 0
Command code (10h)
0
0
0
1
0
0
0
0
Byte 1
Word number/Ident channel/Toggle bit
<WordNum>
<Channel>
<T>
Byte 2
Status
<Status>
Byte 3
Reply counter
<ReplyCounter>
Byte 4
Data 00h ... FFh
<Data>
Byte 5
Data 00h ... FFh
<Data>
Byte 6
Data 00h ... FFh
<Data>
Byte 7
Data 00h ... FFh
<Data>
...
Data 00h ... FFh
<Data>
Byte N
1)
Data 00h ... FFh
<Data>
1. N = 4 x <WordNum> + 5; Ethernet/IP: N = 4 x <WordNum> + 3
