Epson V7 User Manual

The recommended communication parameter settings of the PLC and the V7 series is as follows:

* The maximum baud rate available with the V7 series is 115200 bps.

Select the appropriate baud rate depending on the used PLC and environment.

Set [Trans. Mode] in the [Detail] tab window of the [Comm. Parameter] dialog of the V-SFT 
editor.

*1 BCD w/ signs

Data in the PLC memory can be shown as data with signs.

When higher 4 bits in the memory indicates [F] or [A], it is treated as negative.

[F]: Regards higher 4 bits as [

−0].

[A]: Regards higher 4 bits as [

−1].

• Displayable range

1 word:

−1999 to +9999

2 words:

−19999999 to +99999999

Example:

• Setting procedure: Num. Data Display [Input Type]  BCD

[Display Type]  DEC(w/ 

−sign, w/ +−signs)

Item

Setting on PLC

V7 Comm. Parameter Setting

Baud rate*

19200 bps

19200 bps

Port

0

0

Parity

Even

Even

Transmission code

Data length

7 (ASCII)

7

Stop bit

2

2

Command level

3 (fixed)

−

Protocol

1 : n protocol (fixed)

−

Synchronizing switch

Internal synchronization (fixed)

−

CTS switch

0 V (always ON) (fixed)

−

5 V supply switch

OFF (fixed)

−

Terminating resistance

ON for RS-422

−

Transmission Mode

Contents

Trans. Mode 1

BCD w/o sign

Trans. Mode 2

BCD w/ signs

*1

PLC Memory

Indication on V7

0000 to 9999

  0 to 9999

F001 to F999

−1 to −999

A000 to A999

−1000 to −1999

00000000 to 99999999

0 to 99999999

F0000001 to F9999999

−1 to −9999999

A0000000 to A9999999

−10000000 to −19999999