Special Transactions - Mitsubishi Electric MELSEC iQ-R Series User Manual

Special transactions

This section shows special transactions and message formats.
The special transactions shown below are user definable transactions but are specially processed by the SECS/GEM
communication software internally at the same time as a notification to the programmable controller CPU.
No. Name
1 R
(Online request)
2 CR
(Communication request)
3 DTR_2
(Date and time request)
4 DTS
(Date and time setting)
1. R (Online request)
<S1F1>(H↔E)
(Header only)
<S1F2>(H↔E)
<L, 2>
A<MDLN>
A<SOFTREV>
2. CR (Communication request)
<S1F13>(H↔E)
<L, 2>
A<MDLN>
A<SOFTREV>
<S1F14>(H↔E)
<L, 2>
B<COMMACK>
<L, 2>
A<MDLN>
A<SOFTREV>
3. DTR_2 (Date and time request)
<S2F17>(H←E)
(Header only)
<S2F18>(H→E)
A<TIME>YYYYMMDDhhmmsscc
*1 When data count in <TIME> is set to 16 and variable length setting is enabled, it supports the reception of the following three formats:
16 byte format (YYYYMMDDhhmmsscc)
14 byte format (YYYYMMDDhhmmss)
12 byte format (YYMMDDhhmmss)
*2 <TIME> can be set within the range from 0:00:00 on January 1st, 2000 to 23:59:59 on December 31st, 2079.
Transaction
Primary message: S1F1(H↔E)
Secondary message: S1F2(H↔E)
Primary message: S1F13(H↔E)
Secondary message: S1F14(H↔E)
Primary message: S2F17(H←E)
Secondary message: S2F18(H→E)
Primary message: S2F31(H→E)
Secondary message: S2F32(H←E)
*1,*2
Description
Establishes the SECS/GEM communication software online status
when this transaction is completed
Where line disconnection is not considered as offline, this
transaction will be automatically transmitted when the line is
reconnected.
Configures the time data returned from the host to the clock of the
SECS/GEM communication software pre-installed model module.
Configures clock data of the SECS/GEM communication software
pre-installed model module.
SECS/GEM communication software becomes online when this transaction is
completed.
Online status established based on this transaction is determined from the SF
code.
Even if this transaction has a different name or format from that shown in the
left, the same processing will be performed.
When the "Automatically Transmit S1F13 Upon Line Reconnection" is
enabled in the Option Setting window, this transaction is transmitted
automatically to the host when the line is reconnected.
If the transaction is undefined, automatic transmission will not be performed.
Online status established based on this transaction is determined from the SF
code. Even if this transaction has a different name or format from that shown
in the left, the same processing will be performed.
• Setting the parent list of MDLN and SOFTREV to a variable length list
makes it possible for the host to transmit this as <L, 0>.
• When handshake for each transaction is enabled, note that the reception of
secondary messages at the time of automatic transmission will no longer be
notified to the Programmable Controller CPU.
The time data received in <TIME> is configured in the clock of the SECS/GEM
communication software pre-installed model module.
However, for a MELSEC-Q series SECS/GEM communication software pre-
installed model module, configure the time of CPU No.1 by the programmable
controller CPU because a multiple CPU system depends on the time zone of
CPU No.1.
Notification to the programmable controller CPU is performed according to the
setting.
This differs with a DTS transaction in that the time of the host is acquired by a
request on the programmable controller CPU.
The transaction name "DTR" is not available since it is already used for a
reserved transaction.
When any other name is given, the sequence above will be executed and the
reserved transaction "DTR" will be invalid. (The reserved transaction "DTR" is
a time request from the host).
Appendix 3 Reserved Transactions
A
APPX
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