Epson V7 User Manual

• $s730-761

The following status code for the PLC connected at the MJ port is stored.

Errors other than the above are stored as shown below.

Solution
1. Check the parameter setting of the PLC connected at the MJ port and the setting in the 

[Temp. CTRL/PLC2Way Comm. Setting] dialog.

2. Check the cable connection.
3. Data may be disrupted because of noise.  Fix noise.

Code

Contents

0000H

Normal

FFFFH

Timeout

8001H

Check code error

8002H

Data error

800BH

Error code received from the PLC connected at the MJ port

Buffer-full error

Parity error

Overrun error

Framing error

Break detection

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

0

0

0

0

0

0

0

0

0

0

0

MSB

LSB

Error

0: Bits 0 to 14 are all “0.”
1: Any bit 0 to 14 is not “0.”

Error

Details

Solution

Timeout

Although a request to send is given to the 
PLC connected at the MJ port, no answer is 
returned within the specified time.

Check 1, 2, 3 described below.

Check code error

The check code in the PLC connected at the 
MJ port response was not correct.

Check 1, 3 described below.

Data error

The code of the received data is invalid.

Check 1, 2, 3 described below.

Error code 
received

An error occurs at the PLC connected at the 
MJ port.

Refer to the instruction manual for the PLC.

Buffer full

The V7 buffer is full.

Contact your local distributor.

Parity

An error occurred in parity check.

Check 2, 3 described below.

Overrun

After one character is received, the next 
character is received before internal 
processing is completed.

Check 1, 3 described below.

Framing

Although the stop bit must be [1], it is 
detected as [0].

Check 1, 2, 3 described below.

Break detection

SD (TXD) of the PLC connected at the MJ 
port remains at the low level.

Examine the connection between SD (TXD) 
of the PLC connected at the MJ port and RD 
(RXD) of the V7 series.