2-12
Section
CompoBus/S I/O Master Functions (SRM1(-V2) and CPM2C-S Only)
148
2-12 CompoBus/S I/O Master Functions (SRM1(-V2) and
CPM2C-S Only)
Maximum Number of Nodes
A maximum of either 16 or 32 CompoBus/S nodes may be connected.
Communications mode
No. of nodes set
Communications response time
High-speed mode
16
0.5 ms
g
p
32
0.8 ms
Long-distance mode
16
4.0 ms
g
32
6.0 ms
The communications mode and maximum number of nodes are set in the PC
Setup, as shown in the following table.
Word
Bit(s)
Function
Setting
DM 6603 00 to 03
Maximum number of CompoBus/S nodes
0: 32 nodes
1: 16 nodes
0 or 1
04 to 07
CompoBus/S communications mode
0: High-speed communications
1: Long-distance communications
0 or 1
08 to 15
Not used.
00
Note
When changes are made to these settings, always turn the power off and on
again to make the new setting effective.
Slave Interrupts
Input bits in IR 000 to IR 007 and output bits in IR 010 to IR 017 are used as inter-
rupts for CompoBus/S I/O Terminals. The CompoBus/S I/O Terminal interrupts
(IN 0 to 15 and OUT 0 to 15) are allocated as indicated in the following table.
IN0 to IN15 are the node addresses for the Input Terminals and OUT0 to OUT15
are the node addresses for the Output Terminals.
Word
Bit
15 14 13 12 11 10 9
8
7
6
5
4
3
2
1
0
Input
IR 000
IN1
IN0
p
IR 001
IN3
IN2
IR 002
IN5
IN4
IR 003
IN7
IN6
IR 004
IN9
IN8
IR 005
IN11
IN10
IR 006
IN13
IN12
IR 007
IN15
IN14
Output
IR 010
OUT1
OUT0
p
IR 011
OUT3
OUT2
IR 012
OUT5
OUT4
IR 013
OUT7
OUT6
IR 014
OUT9
OUT8
IR 015
OUT11
OUT10
IR 016
OUT13
OUT12
IR 017
OUT15
OUT14
Note
1. When the maximum number of CompoBus/S nodes is set to 16, IN8 to IN15
can be used as work bits.
2. CompoBus/S Terminals with less than 8 points are allocated bit addresses
from either 0 or 8.
Содержание SRM1 - PROGRAMING 02-2001
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