System Configuration - Mitsubishi Electric QJ71DN91 User Manual

7 PROGRAMMING FOR EXECUTING THE MASTER FUNCTION

7.2 System Configuration

Terminating resistor
24V power supply
Omron CompoBus/D
7 - 4
The explanation of the programs in this chapter is based on the following system.
(1) System configuration
Master node
(Node No.0)
1st slave node
(Node No.1, polling)
8-point input
(DRT1-ID08)
*1: The QJ71DN91 (master node) is installed to slot 0 of the base unit, with the start I/O No. set to
"0000 ".
H
*2: The QJ71DN91 (slave node) is installed to slot 1 of the base unit, with the start I/O No. set to
"0020 ".
H
*3: Rockwell Automation's Flex I/O DeviceNet adapter has input data of two bytes for its status. It
also has 2-byte input data and 2-byte output data.
(2) Settings
(a) Settings of the master node (QJ71DN91 (master node))
For communication with the 1st to 4th slave nodes, set the information such
as connection type and I/O points as the parameters for master function.
(Refer to Section 7.3.)
Node number (Node number switches)
Communication speed (Mode switch)
Receive data
Transmit data
Q06HCPU
QJ71DN91(master node)*
1
2nd slave node
(Node No.2, polling)
Omron CompoBus/D
8-point output
(DRT1-OD08)
Item
MELSEC-Q
Q06HCPU
QJ71DN91(slave node)*
3rd slave node
(Node No.4, polling)
Terminating resistor
4th slave node
(Node No.3, bit strobe)
Rockwell Automation
Flex I/O DeviceNet adapter
+ 16-point input
(1794ADN+IB16)*
Setting
0 (00)
125kbaud (Mode 0)
X100 to X16F
Y100 to Y14F
2
3
7 - 4