96
Programless Communications
Section 5-6
2.
Make the PLC settings.
Use the CX-Programmer to make the communications port settings for the
Serial Communications Unit. The settings can be easily made using IO Ta-
ble and Unit Setup. Be sure to transfer the settings to the PLC.
Note
(1) m = 100
×
Unit No. (word address)
(2) When using a communications port of the CPU Unit, start the CX-Pro-
grammer and set the Host Link port settings in the PLC Settings. Be sure
to transfer the settings to the PLC.
(3) The same serial port on the CS/CJ-series Serial Communications Board/
Unit cannot be connected to both the EJ1G and an NS-series Program-
mable Terminal.
The following settings are also required if the models listed below are used.
3.
Set the EJ1G parameters.
No particular EJ1G parameter settings are required when using SYSMAC
CS/CJ Series PLCs. Leave the parameters set to their default settings.
For the default settings, the EJ1G monitor and set values are allocated in
the DM Area in the PLC as shown in the following table.
If the allocated words shown below are already in use, change the words
referring to Programless Communications Upload/Download Data Area
(Variable Type: F0/B0) on page 104 and to Programless Communications
Upload/Download Start Address (Variable Type: F0/B0) on page 105.
DM Area
Bits
Settings
Set
value
Board CS Series only
Unit CS/CJ Series
Port 1
Port 2
Port 1
Port 2
D32000
D32010
m
m+10
15
Port settings
Setting not required. 0200H
14 to 12 Reserved
---
11 to 08 Serial communications mode 1:N NT Links
07 to 05 Reserved
---
04
Start bits
Setting not required.
03
Data length
Setting not required.
02
Stop bits
Setting not required.
01
Parity
Setting not required.
00
Parity
Setting not required.
D32001
D32011
m+1
m+11
15 to 04 Reserved
---
000AH
03 to 00 Baud rate
High-speed NT Link
D32006
D32016
m+6
m+16
15 to 03 Reserved
---
0000H
02 to 00 Maximum unit number
0
Model
Terminating resistance ON/OFF switch 2-wire/4-wire switch
CJ1W-SCU41-V1
CS1W-SCB41-V1
ON
2
DM Area
Contents (monitor value)
DM Area
Contents (set value)
D00000
Read Response Bits
D00500
Read Request Bits
D00001
Setting Change Response Bits
D00501
Setting Change Request Bits
D00002
Operation Command Response Bits
D00502
Operation Command Request Bits
D00003
Communications Status
D00503
Operation Command Code
D00004
Monitor Value A
D00504
Set Value A
Summary of Contents for EJ1G
Page 3: ...iv ...
Page 17: ...xviii ...
Page 21: ...xxii ...
Page 53: ...32 Unit Configuration Examples Section 2 4 ...
Page 69: ...48 Changing SPs During Operation Section 3 3 ...
Page 81: ...60 Other Functions Section 4 5 ...
Page 145: ...124 Other HFU Functions Section 5 7 ...
Page 167: ...146 Detailed Description of Services Section 6 4 ...
Page 229: ...208 Parameters That Can Be Allocated for Programless Communications Appendix ...
Page 237: ......