Hitachi EHV+ Series User Manual

Chapter 2 Specifications
2 – 78
Communication setup switch
Setting Details
Communication speed setup Bit 1, 2, 3, and 4 are used for the communication speed setting.
- DIP Sw1 is for port 1 setup
- DIP Sw2 is for port 2 setup
ON
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Bit1 Bit2 Bit3 Bit4 Communication speed
OFF OFF OFF OFF Do not set these patterns.
OFF OFF OFF ON
OFF OFF ON OFF
OFF OFF ON ON 1,200 bps
OFF ON OFF OFF 2,400 bps
OFF ON OFF ON 4,800 bps
OFF ON ON OFF 9,600 bps
OFF ON ON ON 19,200 bps
ON OFF OFF OFF 38,400 bps
ON OFF OFF ON 57,600 bps
ON OFF ON OFF Do not set these patterns.
ON OFF ON ON
ON ON OFF OFF
ON ON OFF ON
ON ON ON OFF
ON ON ON ON
Bit 5, 6, and 7 are used for the transmission letter configuration setup. Transmission letter configuration
setup
- DIP Sw1 is for port 1 setup.
- DIP Sw2 is for port 2 setup.
ON
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Communication format setup
Bit5 Bit6 Bit7
Data length Stop bit Type of parity
OFF OFF OFF 7 2 Even number
OFF OFF ON 7 2 Odd number
OFF ON OFF 7 1 Even number
OFF ON ON 7 1 Odd number
ON OFF OFF 8 2 None
ON OFF ON 8 1 None
ON ON OFF 8 1 Even number
ON ON ON 8 1 Odd number
Select of I/F of port 2
communication (Only DIP Sw2)
Bit 8 is used for selecting I/F of port 2 (RS-232C or RS-422 / 485)
(RS-422 / 485 is decided according to external wiring.)
8
ON
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1
Bit8 Select I/F of Port 2 communication
OFF RS-232C port
ON RS-422 / RS-485 port
[Note] The system uses DIP Sw1(Bit8). Do not turn on it.
RS-232C connector
External view of connector No. Signal Signal name Diagram of Internal circuit
1 SG Signal grounding
2 CD Career detection
3 CS Transmittable
4 ER Data terminal ready
5 SD EH-SIO transmitting data
6 RD EH-SIO receiving data
7 DR Data set ready
8
1
....
8
1
....
8 RS Transmitting request
Microprocessor
1 SG
2 CD
3 CS
4 ER
5 SD
6 RD
7 DR
8 RS
RS-422 / 485 connector
External view of connector No. Signal Signal name Diagram of Internal circuit
1 SD＋ EH-SIO transmitting data ＋
2 SD－ EH-SIO transmitting data －
3 RD＋ EH-SIO receiving data ＋
4 RD－ EH-SIO receiving data －
5 TERM For terminator
6
1
....
6 SG Signal grounding
Microprocessor
6 SG
1 SD
+
2 SD
-
3 RD
+
4 RD
-
5 TERM
+
-
+
-
110
Ω

Hitachi EHV+ Series Specifications

General

Brand	Hitachi
Model	EHV+ Series
Category	Controller
Language	English