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Chapter 8 High-speed counter, PWM / Pulse train output and Analogue I/O
8-24
8.11 Analogue Expansion unit
Analogue expansion module has 4 ch. of analog input and 2 ch. of analog output, which is configured by dip switches.
Range setting
Analogue input range setting (Common for all input channels.)
Sw1 Sw2 Range Remarks
off off 0 - 10V Default setting
off ON 0 - ±10V
ON off 0 - 20mA
ON ON 4 - 20mA
Analogue output range setting (Common for all output channels.)
Sw3 Sw4 Range Remarks
off off Default setting
off ON
0 - 10V
ON off 0 - 20mA
ON ON 4 - 20mA
Conversino mode
Sw6 Conversion mode Remarks
off 4,096 (H0FFF)
ON 4,000 (H0FA0) Default setting
Sw5,7,8 : Set off always.
I/O assignment, data table
I/O assignment = "FUN 0"
WX u00
System area Do not use this area.
WX u01 Ch.1 Input data
WX u02 Ch.2 Input data
WX u03 Ch.3 Input data
WX u04 Ch.4 Input data
Data in lower 12 bits.
Always 0 in higher 4 bits.
0000H - 0FFFH
WY u05 System area Do not use this area.
WY u06 Ch.6 Output data
WY u07 Ch.7 Output data
Data to be written in lower 12 bits.
0000H -0FFFH
u : Unit number (1 - 4)
Example : Unit 1, Input ch.2 → WX102 Unit 4, Output ch.7 → WY407
In/output data table
0 - 10V / 0 - 20mA / 4 - 20mA
Mode 4000 Mode 4096
0V / 0mA / 4mA 0 0
5V / 10mA / 12mA H07D0 (2000) H07FF (2047)
10V / 20mA / 20mA H0FA0 (4000) H0FFF (4095)
-10 - +10V (only for analog input)
Mode 4000 Mode 4096
-10V H0830 (-2000) * H0800 (-2048) *
0V 0 0
+10V H07D0 (2000) H07FF (2047)
* 2's complement
SW1 → 1 O
N
OFF
ON
Dip switch
(Default setting)
Caution : Set dip switch while power off.
SW2 → 2
SW3 → 3
SW4 → 4
SW5 → 5
SW6 → 6
SW7 → 7
SW8 → 8