User`s manual

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MELSEC-Q
6 PROGRAMMING
6.3 For Use on Remote I/O Network
System configuration used in the program explanation
(1) System configuration
tototo
Q
n
C
P
U
Q
X
1
0
Q
Y
1
0
Power
supply
module
X/Y100
X/Y10F
X/Y110
X/Y11F
X/Y120
X/Y12F
Remote master station (Network No.1) Remote I/O station (Station No.1)
Q
J
7
1
L
P
2
5
Power
supply
module
Q
6
2
D
A
F
G
Q
X
1
0
Q
Y
1
0
Q
J
7
1
L
P
2
1
Perform the following intelligent function module switch settings in advance.
• Switch 1 0030
H
(CH1: 4 to 20mA, CH2: 0 to 5V)
• Switch 2 Empty
• Switch 3 0000
H
(CH1, CH2: Clear)
• Switch 4 0000
H
(Normal mode (D/A conversion processing))
• Switch 5 0000
H
(0: Fixed)
(2) Program conditions
The digital values of CH1 and CH2 of the Q62DA-FG are written and their output
monitor values are read to the PLC CPU of the remote master station.
If a digital value write error occurs, the corresponding error code is displayed in
BCD.
(a) Initial settings
• Analog output enabled channel....................CH1, CH2
• Rate control enabled channel....................... CH1 (increase digital limit
value: 100, decrease digital
limit value: 30)
• Disconnection detection enabled channel ...CH1
• Warning output enabled channel..................CH2 (warning output upper
limit value: 10000, warning
output lower limit value: 3000)
(b) Devices used by user
• Initial setting request signal .....................................X20
• Output enable...........................................................X21
• Digital value write signal ..........................................X22
• Disconnection detection reset signal.......................X23
• Warning output reset signal.....................................X24
• Error code reset signal.............................................X25
• Error code display (BCD 3 digits) ............................Y30 to Y3B
• CH1 digital value......................................................W11
• CH2 digital value......................................................W12
• CH1 output monitor value........................................W113
• CH2 output monitor value........................................W114
• Disconnection detection flag....................................W115
• Warning output flag..................................................W116
• Error code.................................................................W117
• Disconnection detection channel flag......................M10
• Warning output channel flag....................................M22, M23