Omron E5AF, Operation Manual

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4--1 Communications Connectors
4--1--1 Connection of E5AF-A20 and PC
The E5AF Fuzzy Temperature Controller with BCD communications can be
directly connected to a PC (Programmable Controller) or a personal comput-
er.
OUT
COM
0 V
COM
GND
1
DSL1
2
DSL2
3
DSL3
4
DSL4
5
DSL5
6
DSL6
8
WD1
9
WD2
10
WD3
11
WD4
12
VAL
14
RD1
15
RD2
16
RD3
17
RD4
18
BUSY
24 DC
GND
23, 24
13, 25
OUT
IN
+V (24 VDC)
COM (0 V)
COM (24 VDC)
OUT
: IN
4.7 k
External
power
supply
Input circuit
Output circuit
Output Unit
(Transistor output)
Input Unit
(24 VDC input)
+24 V
0 V
E5AF-A20 PC (SYSMAC)
+24 V
Note The communications specifications of the E5AF-A20 and those of the
E5AX-A20 are identical.
Communications are possible as long as the VAL signal from the SYSMAC
PC is ON (low).
When a data select code (DSL1 to DSL6) is input from the PC to the
E5AF-A20, the E5AF-A20 either reads data from lines WD1 through WD4 or
writes data to lines RD1 through RD4 according to the data select code.
Note 1. Use the communications connector on the back of the E5AF to connect
the PC and the E5AF-20.
2. To communicate between one PC and several E5AF-A20 Models, use a
wired OR to connect each signal terminal other than the VAL terminal,
and select the Controller to communicate with using independent VAL sig-
nal lines.
Terminals
Input/output signal name Voltage Current Impedance Remarks
Input DSL1 to DSL6
WD1 to WD4
VAL 24 VDC 5.1 mA 4.7 k
"
------
Output RD1 to RD4
BUSY 24 VDC 5 to 15 mA ------ Open collector
Operation
Section 4--1