100
Programless Communications
Section 5-6
2.
Make the PLC settings.
Use the GX Developer to make the settings outlined below for the commu-
nications port used.
Note
(1) To set a different baud rate from that given above, refer to Baud Rate Set-
ting on page 107 and change 0B.
(2) Refer to MELSEC-QnAS Series on page 107 if using a Communications
Module for the QnAS Series.
3.
Make the EJ1G settings.
When using RS-232C, turn ON pin 8 on SW 2 (to select RS-232C) and
make the settings shown in the following table. No other settings are re-
quired.
For the default settings, data registers in the PLC are allocated to the EJ1G
monitor and set values 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.
Channel
Switch
number.
Bit
Description
Set
value
Position
Setting
CH1
SW01
b0
OFF
Transmission
setting
Operation setting
Independent
0BEEH
b1
ON
Data bits
8
b2
ON
Parity bit
Yes
b3
ON
Even/odd parity
Even
b4
OFF
Stop bits
1
b5
ON
Checksum
Yes
b6
ON
Write during RUN
Allowed
b7
ON
Setting modifica-
tions
Allowed
b8 to b15
---
Communications
rate setting
115200 bps (0BH)
SW02
---
Communications protocol setting
MC protocol format 5 0005H
CH2
SW03
Same settings as SW01.
SW04
Same settings as SW02.
Common
for both
CH1 and
CH2
SW05
---
Station number setting
0
0000H
Variable type
Parameter name
Setting/Monitor values
F0/B0
Programless Communications Protocol
(Common)
5:MC protocol (format 5)
1:1 ms
Port C Send Wait Time
(Common)
Data register
Contents (monitor value)
Data register
Contents (set value)
D0
Read Response Bits
D500
Read Request Bits
D1
Setting Change Response Bits
D501
Setting Change Request Bits
D2
Operation Command Response Bits
D502
Operation Command Request
Bits
D3
Communications Status
D503
Operation Command Code
D4
Monitor Value A
D504
Set Value A
D5
Monitor Value B
D505
Set Value B
··
·
··
·
··
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Содержание EJ1G
Страница 1: ...USER S MANUAL Modular Temperature Controllers for Gradient Temperature Control EJ1G Cat No H143 E1 01 ...
Страница 3: ...iv ...
Страница 17: ...xviii ...
Страница 21: ...xxii ...
Страница 53: ...32 Unit Configuration Examples Section 2 4 ...
Страница 69: ...48 Changing SPs During Operation Section 3 3 ...
Страница 81: ...60 Other Functions Section 4 5 ...
Страница 145: ...124 Other HFU Functions Section 5 7 ...
Страница 167: ...146 Detailed Description of Services Section 6 4 ...
Страница 189: ...168 Determining the Error from the Current Situation for Heater Burnout Alarm Errors Section 7 8 ...
Страница 229: ...208 Parameters That Can Be Allocated for Programless Communications Appendix ...
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