7 - 4 7 - 4
MELSEC-Q
7 PROGRAMMING FOR EXECUTING THE MASTER FUNCTION
7.2 System Configuration
The explanation of the programs in this chapter is based on the following system.
(1) System configuration
24V power supply
Master node
1st slave node
2nd slave node
4th slave node
3rd slave node
Terminating resistor
Terminating resistor
QJ71DN91(master node)*
1
Q06HCPU
QJ71DN91(slave node)*
2
Q06HCPU
(Node No.1, polling)
Omron CompoBus/D
8-point input
(DRT1-ID08)
(Node No.3, bit strobe)
Rockwell Automation
Flex I/O DeviceNet adapter
+ 16-point input
(IB16)*
3
(Node No.4, polling)
(Node No.2, polling)
Omron CompoBus/D
8-point output
(DRT1-OD08)
(Node No.0)
*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.)
Item Setting
Node number (Node number switches)
0 (00)
Communication speed (Mode switch)
125kbaud (Mode 0)
Receive data
X100 to X16F
Transmit data
Y100 to Y14F
Summary of Contents for QJ71DN91
Page 1: ...DeviceNet Master Slave Module User s Manual QJ71DN91 GX Configurator DN SW1D5C QDNU E ...
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