Manual
3-2 I/O Communication
3-8
- DeviceNet Compatible Network Unit DL-DN1 Userโs Manual (FD-MH) -
3
Communicating with the FD-MH series
๎ Error information list
Error ID 
number
(HEX)
Error
code
(HEX)
Description Cause Corrective action
00h
01h Initialization error Error encountered during 
initialization.
Check the number of 
connected sensor amplifiers 
and the connection to the 
sensor amplifiers, and then 
cycle power. If the error 
remains, contact your nearest 
sales office.
04h Mixed connection 
error
A foreign sensor amplifier (i.e., 
one that is not compatible) is 
connected.
Remove the foreign sensor 
amplifier.
06h Number-of-units error More sensor amplifiers are 
connected than are permitted.
Check the number of 
connected sensor amplifiers.
nnh
(01h - 0Fh)
01h Error 1 for sensor 
amplifier of ID num-
ber nn
Head error (ErS)
Refer to the FD-MH series 
instruction manual.
02h Error 2 for sensor 
amplifier of ID num-
ber nn
Head connection error (ErH)
03h Error 3 for sensor 
amplifier of ID num-
ber nn
Overcurrent error (ErC)
04h Error 4 for sensor 
amplifier of ID num-
ber nn
EEPROM error (ErE)
05h Error 5 for sensor 
amplifier of ID num-
ber nn
(Not used)
06h Error 6 for sensor 
amplifier of ID num-
ber nn
07h Error 7 for sensor 
amplifier of ID num-
ber nn
Backflow error (rEv)
08h Error 8 for sensor 
amplifier of ID num-
ber nn
(Not used)
09h Error 9 for sensor 
amplifier of ID num-
ber nn
Te m p er ature lower limit error
0Ah Error 10 for sensor 
amplifier of ID num-
ber nn
Te m p er ature upper limit error
0Bh Error 11 for sensor 
amplifier of ID num-
ber nn
Te m p er ature sensor connection 
error
(Err tEMP)
1Dh
02h/
04-07h
System error An error occurred in the internal 
system.
Check the connection to the 
sensor, and then cycle power. If 
the error can not be corrected, 
contact your nearest sales 
office.
03h Model error There is a sensor amplifier 
connected that is incompatible 
with the DL-DN1.
Connect a sensor amplifier of a 
compatible model.
1Fh - No error - -










