Mitsubishi Q68DAVN User Manual download pdf (Page 95)

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MELSEC-Q

6 PROGRAMMING

This chapter describes the programs of the D/A converter module.

When applying any of the program examples introduced in this chapter to the actual

system, verify the applicability and confirm that no problems will occur in the system

control.

6.1 For Use in Normal System Configuration

System configuration used in the program explanation

(1) System configuration

Power supply module

QnCPU

Q62DA

QX10

QY10

X/Y0

X/YF

X/Y10

X/Y1F

X/Y20

X/Y2F

Perform the following intelligent function module switch settings in advance.

• Switch 1 0030

(CH1: 4 to 20mA, CH2: 0 to 5V)

• Switch 2 Empty

• Switch 3 0000

(CH1, CH2: Clear)

• Switch 4 0000

(Normal mode (D/A conversion processing))

• Switch 5 0000

(0: Fixed)

(2) Program conditions

If a digital value writing error occurs while a digital value is being written into the

CH1 or CH2 digital value area for Q62DA, read the error code.

(a) Contents of initial setting

• Analog output enabled channel

..........................................

CH1 and CH2

(b) Devices used by the user

• Output enable

....................................................................

X10

• Digital value write signal

....................................................

X11

• Error code reset signal

.......................................................

X12

• Error code display (3-digit BCD)

........................................

Y20 to Y2B

• CH1 digital value

................................................................

D11

• CH2 digital value

................................................................

D12

• Error code

.........................................................................

D13

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Mitsubishi Q68DAVN User Manual Page 95

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