Mitsubishi Electric MELSEC iQ-R Series User Manual page 71

Item

Control Register
Control Register
Data Type
*2
Fixed Value
*3
No setting
Select List 
Select Register
Select Key Item
Repeat Define List 
Repeat Item Number
Register Offset
*1 Supported by the non-GEM version only.
*2 Displayed when an option other than "LIST" has been selected for "Data Type".
*3 Displayed when "LIST" has been selected for "Data Type".
Description
Select when a control register will be used for transmission.
• During sending: Refers to the control register value, and then sends it as item data.
• During receipt: Refers to the value of the received item data, and then writes it to the prescribed
control register.
Configure the control register.
The data format can be changed during reception and sending by configuring the "Data Type" of the
control register.
For details of data type conversion, refer to the following:
Page 281 Data Type Conversion
By configuring the conversion table settings in advance, a processing to convert register values can be
selected in accordance with item values.
For details of conversion tables, refer to the following:
Page 144 Conversion Table Setting
ALCD/ALID/ALTX/AlarmItem1 to 4 can be configured for "Data Type" when "ALARM" has been
selected for "Format Mode" in the "Transaction Information" screen.
For details on the alarm function, refer to the following:
Page 117 Alarm Definition (non-GEM version)
Select this checkbox to configure the content of sending data to a fixed value, and then configure the
value.
Up to 30000 alphanumeric characters can be entered for "Fixed Value."
Select this checkbox if the list quantity is determined by the item data structure.
In case of a variable, register the list quantity to the control register.
Select this checkbox to set as the parent list of the select list function.
This item can be set when "LIST" is selected for "Data Type", and the "Variable Length" checkbox has
been selected.
In the items defined, only items specified by the programmable controller CPU can be sent.
In case of reception, items can be saved to the specified register by specifying the key items.
Configure the select register of the select list function.
• During sending
From the programmable controller CPU, configure to 1 to enable and 0 to disable.
When a relay device was specified, configure the relay to ON to enable this item and to OFF to disable
this item.
• During reception
From the SECS/GEM communication software, configure to 1 if the received data is valid or 0 if it is
invalid in comparison with the Select Key Item.
When a relay device was specified, configure the relay to ON or OFF when the reception data is valid or
invalid.
Select this checkbox to set this item as the key item of the select list function of the reception message.
Select this checkbox to set as the parent list of the repeat define list function.
The setting can be simplified in case of a configuration that repeats the same elements.
Configure the maximum element quantity of the Repeat Define List function.
Configure the offset of the register No. of the repeat define list function.
*1
7 BASIC FUNCTIONS
69
7.4 Transaction List
7