135
Programless Communications
Section 5-1
Note
Reset the EJ1 to enable the setting.
Note
When using the default Basic Unit settings, programless communications will
stop if a programless link error occurs. This will make reading parameters,
changing settings, and executing operation commands impossible. When
starting normal operation, it is recommended that the programless communi-
cations error operation selection be set to continue operation.
PLC Settings
SYSMAC CS/CJ Series
The settings are the same as made when checking operation. Refer to
Check-
ing Operation with SYSMAC CS/CJ Series PLCs
on page 117.
MELSEC-Q Series
The settings are the same as made when checking operation. Make settings
based on the following table if the baud rate or transmission settings need to
be changed.
■
Transmission Settings
Note
Change the settings if required. If changes are made, make the same settings
on the EJ1.
Setting range
Operation
0: Continue
Programless communications will be restarted automatically
when the cause of the programless link error has been removed
and communications are possible with the PLC.
1: Stop
Read/write operations for PLC memory will not be performed
even after the cause of the programless link error has been
removed and communications are possible with the PLC.
Instead, EEEE will be set in the Operation Command Response
Bits. Refer to
Method for Canceling Communications Errors
on
page 154 for information on clearing the error.
Channel
Switch number Bit position
Description
CH1
SW01
b0 to 7
Transmission settings
b8 to 15
Baud rate setting
SW02
---
Communications protocol setting
CH2
SW03
b0 to 7
Transmission settings
b8 to 15
Baud rate setting
SW04
---
Communications protocol setting
Common for both
CH1 and CH2
SW05
---
Station number setting
Bit
Description
OFF (0)
ON (1)
Setting
b0
Operation setting
Independent Linked
0
E
b1
Data bits (See note.)
7
8
1
b2
Parity bit (See note.)
No
Yes
1
b3
Even/odd parity (See note.) Odd
Even
1
b4
Stop bits (See note.)
1
2
0
E
b5
Checksum
No
Yes
1
b6
Write during RUN
Prohibited
Allowed
1
b7
Setting modifications
Prohibited
Allowed
1
Summary of Contents for EJ1 EtherCAT
Page 2: ...EJ1 Modular Temperature Controllers User s Manual Revised July 2008 ...
Page 3: ...iv ...
Page 19: ...xx ...
Page 213: ...188 Detailed Description of Services Section 6 4 ...
Page 227: ...202 Detailed Description of Services Section 7 5 ...
Page 303: ...278 Index ...
Page 305: ......