Omron Nt-Link; Error Messages; General Information; Hardware - Omron NT4S Operation Manual

Linking to OMRON Controllers
6.1.7

Error Messages

6.2

OMRON NT-Link

6.2.1

General Information

6.2.1.1

Hardware

6.2.1.2

Telegram Mode

Code 50 E HARDWARE . . . . . . . . . . . . . . . . . . . . .Communication error on
Code 60 E PROTOKOL. . . . . . . . . . . . . . . . . . . . . .Communication error on
Subcode
10. . . . . E RESPONSE TIMEOUT. . .No response from PLC
20. . . . . E RECEIVE COUNT . . . . . . .Wrong number of data re-
30. . . . . E FCS . . . . . . . . . . . . . . . . . . . . . .Wrong checksum
Code 70 E UNDEF CODE. . . . . . . . . . . . . . . . . . .Undefined command
80 E RESPONSE CODE . . . . . . . . . . . . . .Error from PLC
Subcode
01. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Can not be executed when
02. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Can not be executed when
13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Frame checksum error
14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Command format error
15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Wrong read or write areas
16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Command not available
18. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Frame length error
23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .User memory is write-pro-
All operating terminals can be conveniently connected to controllers that support
the OMRON NT-Link protocol. The OMRON NT-Link protocol allows communi-
cation between one controller and up to 8 operating terminals. Since the Host-Link
protocol is the default setting in OMRON controllers, this setting must be checked
before using the NT protocol. See the controller's operating instructions.
The SER1 RS232 or SER1 RS485 is used to connect the operating terminals to
OMRON controllers.
With the NT-Link, a distinction is made between two protocols. The 1:1 protocol is
used for point-to-point connections while the 1:N protocol is used for multipoint
connections.
Section 6-2
hardware level
protocol level
ceived
PLC is in RUN mode
PLC is in MONITOR mode
tected
205