2-5SectionUsing the Functions
21
Set Values and Stored Values
Item Contents
Use designation 0: Do not use.
1: Use.
Input signal range 00: –10 to 10 V
01: 0 to 10 V
10: 1 to 5 V/4 to 20 mA (See note.)
11: Same as for setting “10” above.
Mean value processing
setting
0000: No mean value processing
0001: Mean value processing for 2 buffers
0002: Mean value processing for 4 buffers
0003: Mean value processing for 8 buffers
0004: Mean value processing for 16 buffers
Note The input signal range of 1 to 5 V (4 to 20 mA) is switched according to the input
terminal connections.
2-5 Using the Functions
2-5-1 Setting Inputs and Signal Ranges
The Analog Input Unit only converts analog inputs specified by input numbers 1
to 8. In order to specify the analog inputs to be used, turn ON from a Peripheral
Device the DM bits shown in the following diagram.
15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00
Bit
Input 8
Input 7
Input 6
Input 5
Input 4
Input 3
Input 2
Input 1
DM (m)
0: Do not use
1: Use
The analog input sampling interval can be shortened by setting any unused input
numbers to 0.
Sampling interval = (1 ms) x (Number of inputs used)
For the DM word addresses, m = 1000 + 100 x unit number (Units #A to #F = Unit
numbers 10 to 15).
Any of four types of input signal range can be selected for each of the eight inputs
(input numbers 1 to 8). In order to specify the input signal range for each input,
set from a Peripheral Device the DM bits shown in the following diagram.
15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00
Bit
Input 8
Input 7
Input 6
Input 5
Input 4
Input 3
Input 2
Input 1
DM (m+1)
00: -10 to 10 V
01: 0 to 10 V
10: 1 to 5 V / 4 to 20 mA
11: Same as 10 above.
Switching between the options of “1 to 5 V” and “4 to 20 mA” is done by means of
the input terminal connections.
Input Numbers
Input Signal Range
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