Delta AH500 - Control Registers

Chapter 8 Serial Communication Module AH10/15SCM
8-9
8.4 Control Registers
CR#
Attribute
Register name
Description
0~6
Reserved
7 R/W
Triggering the reading of data
through COM1
High byte: Reading data from bit devices
Low byte: Reading data from word devices
0: Not triggering it
1: Triggering it once
2: Always triggering it
8 R/W
Triggering the writing of data
through COM1
High byte: Writing data into bit devices
Low byte: Writing data into word devices
0: Not triggering it
1: Triggering it once
2: Always triggering it
9~16 Reserved
17 R/W
Triggering the reading of data
through COM2
High byte: Reading data from word
devices
Low byte: Reading data from word devices
0: Not triggering it
1: Triggering it once
2: Always triggering it
18 R/W
Triggering the writing of data
through COM2
High byte: Writing data into bit devices
Low byte: Writing data into word devices
0: Not triggering it
1: Triggering it once
2: Always triggering it
19
Reserved
20
Reserved
21 R/W
Triggering the sending/receiving
of the packets in a group
through COM1
Triggering the sending/receiving of the
packets in a group through COM1
22 R/W
Base register used for the
sending of data through COM1
The communication protocol for
exchanging data through COM1 must be
UD Link. Users have to select
Base+Offset in the Mapping Register
box in the Message Variable Edit window
in SCMSoft.
Data register from which data is
read=Value in CR#22+Offset
23 R/W
Base register used for the
receiving of data through COM1
The communication protocol for
exchanging data through COM1 must be
UD Link. Users have to select
Base+Offset in the Mapping Register
box in the Message Variable Edit window
in SCMSoft.
Data register into which data is
written=Value in CR#23+Offset
24 Reserved
25 R/W
Triggering the sending/receiving
of the packets in a group
through COM2
Triggering the sending/receiving of the
packets in a group through COM2