4 Modbus Communications Procedure
4 - 16
E5@D Digital Temperature Controllers Communications Manual (H225)
4-5
Upload Settings and Download
Settings for Modbus
Communications
z
Introduction
If multiple parameters with consecutive addresses must be read or written through host
communications, you can read or write the specified number of parameters (elements) in one
operation. If the parameter addresses are not consecutive, they cannot be read or written in one
operation.
With the E5
@
D, you can use the upload settings and download settings that are used in
Section 6
Programless Communications
to treat any parameters as parameters with consecutive addresses to
improve host communications access and efficiency with Modbus communications.
z
Addresses of Parameters Allocated in Upload Settings and Download
Settings
You can allocate 13 parameters in the upload settings and 13 parameters in the download settings.
For details on addresses, refer to
Upload Settings 1 to 13
and
Download Settings 1 to 13
on page
5-7.
z
Default Settings and Set Values of Parameters Allocated in Upload Settings
and Download Settings
The default settings and set values for the parameters that are allocated with the upload settings
and download settings are the same as those in
Section 6 Programless Communications
.
For details, refer to
6-2-9 Upload Settings and Download Settings
(pages 6-12 and 6-13).
Note: The default setting of the Upload Setting 1 parameter, Communications Monitor, can be used only with
programless communications, so the setting is disabled for Modbus communications.
Additional Information
4-4-1 Variable Read, Multiple
on page 4-8
4-4-2 Variable Write, Multiple
on page 4-10
Previous Communications
Communications with Upload Settings and Download
Settings
XXX0
Parameter A
One read operation
3A00
Parameter B
First read operation
XXX1
Parameter B
(three elements specified)
3A01
Parameter E
XXX2
Parameter C
3A02
Parameter G
XXX3
Parameter D
3A03
Parameter
Second read operation
XXX4
Parameter E
3A04
Parameter
XXX5
Parameter F
3A05
Parameter
Third read operation
XXX6
Parameter G
3A06
Parameter
XXX7
Parameter H
3A07
Parameter
Summary of Contents for E5 D Series
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