Chapter
11
92
ML-9011A
Chapter
11
Interface Specifications
11.2.1 Input and Output Signals
■
Input Signals
Input format:Photo-coupler input
Input rating: 24 V DC
*1
Selecting start number “0” is regarded as equivalent to selection of “1.”
*2 Selecting an unregistered start number will result in a data error.
■
Output Signals
Output format: Photo-MOS relay output
*1
Output rating: 24 V DC, 70 mA max.
*1 When the inductive load such as solenoid and relay is used, the spike voltage generated when
driving the load may cause equipment to malfunction. Suppress the spike voltage by connecting
the surge absorber or the diode to the load.
11.2Extended External Input and Output
(EEXT. I/O)
Pin No.
Signal
Signal description
1
+24 V output
Input signal power supply
2
Start no.
selection
signal
*1*2
1
Start number selection input (binary code 1)
3
2
Start number selection input (binary code 2)
4
3
Start number selection input (binary code 4)
5
4
Start number selection input (binary code 8)
6
5
Start number selection input (binary code 16)
7
6
Start number selection input (binary code 32)
8
7
Start number selection input (binary code 64)
9
8
Start number selection input (binary code 128)
10
9
Start number selection input (binary code 256)
11
10
Start number selection input (binary code 512)
12
Start no. confirmation
strobe
When closed, the start number is confirmed.
13
DI common
Common terminal for input signals.
15
0V
Ground for +24 V output
Common to 0 V for output signals
Pin No.
Signal
Signal description
14
Start no. confirmation
Close (ON) output is supplied with the start number confirmation.