160
Connecting More Than One HFU
Section 5-2
2.
Make the PLC settings.
Refer to
Make the PLC settings.
on page 123
3.
Make the EJ1 settings.
Make the following setting in all HFUs that are connected.
Note
If three HFUs are connected, set the maximum unit number to 2.
RDA(
−
)
SDA
SDB
RDA
RDB
FG
MELSEC
Q/QnA/QnAS-series PLC
RS-422
R
RS-422
RDB(+)
B1
B2
B3
B4
B5
B6
B7
B8
B9
A1
A2
A3
A4
A5
A6
A7
A8
A9
EJ1N-HFU
@
-NFL2
SDB(+)
SDA(
−
)
RS-422
RDB(+)
B1
B2
B3
B4
B5
B6
B7
B8
B9
A1
A2
A3
A4
A5
A6
A7
A8
A9
SDB(+)
SDA(
−
)
R
RDA(
−
)
EJ1N-HFU
@
-NFL2
Signal
Shield
Variable type
Parameter name
Setting/Monitor values
F0/B0
Port C Send Wait Time
1: 1 ms
Programless Communications Protocol
5: MC protocol (format 5)
Programless Communications Maximum
Unit Number (See note.)
Set the unit number to
one less than the number
of HFU units that are
connected.
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: ......