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134
Programless Communications
Section 5-1
Note
(1) Make sure the same address is not allocated in both the Programless Up-
load Settings and Programless Download Settings.
(2) Reset the EJ1 to enable settings.
(3) The ranges of registers that can be used are different for the An-series,
AnS-series, and FX3UC-series PLCs. Refer to the PLC manual for de-
tailed setting ranges.
Communications
Settings
The following parameters are used to make the EJ1 communications settings.
Set these parameters to the same conditions as the PLC.
Note
Reset the EJ1 to enable settings.
When using an NT Link, use the default settings for all the above parameters.
Adjusting
Communications
Time with PLC
With programless communications, the time from when the command is sent
to the PLC until a response is returned is monitored using the Programless
Communications Receive Wait Time.
• This time will differ, depending on the PLC cycle time. Consider the PLC
system configuration and allow sufficient margin when setting the
response wait time. Communications will not be normal if this setting is
too short.
Note
Reset the EJ1 to enable the setting.
Operation for Error in
Programless Link
Either continuing or stopping operation can be selected for when errors occur
in the programless link.
Variable type
Parameter name
Setting/Monitor
values
Default
F0/B0
Port C Communications Baud Rate
(Common)
3: 9.6 kbps
4: 19.2 kbps
5: 38.4 kbps
6: 57.6 kbps
7: 115.2 kbps
7
Port C Communications Data Length
(Common)
0: 7 bits
1: 8 bits
1
Port C Communications Parity
(Common)
0: None
1: Even
2: Odd
1
Port C Communications Stop Bits
(Common)
0: 1 bit
1: 2 bits
0
Port C Send Wait Time (See
Condi-
tions for use
.)
(Common)
0 to 99 ms
5
Conditions for use
The Programless Communications Protocol cannot be NT Link
(1: N).
Variable type
Parameter name
Setting range Default
F0/B0
Programless Communications
Receive Wait Time
(Common)
10 to
10000 ms
2000
Conditions for use
The Programless Communications Protocol cannot be NT Link
(1: N).
V1.1
Variable type
Parameter name
Setting range Default
F0/B0
Selection of Programless Communi-
cations Operation during Error
(Common)
0: Continue
1: Stop
1
Conditions for use
No special conditions
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: ......