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APPX
Appendix 3 Buffer Memory
UCMM data link request command, UCMM data link receive command
■UCMM data link request command (No.1) (Un\G393280 to Un\G394047)
This item is used to set the UCMM communication request command.
*1 For the setting value, refer to the manuals of the send destination EtherNet/IP device.
■UCMM data link receive command (No.1) (Un\G394048 to Un\G394815)
This item stores the UCMM communication response command.
*1 For the stored value, refer to the manuals of the EtherNet/IP device from which the command was sent.
■UCMM data link request command (No.2 to No.32) and UCMM data link receive command
(No.2 to No.32) (Un\G394816 to Un\G442431)
This item sets and stores the information of No.2 to No.32 in the same order as UCMM data link request command (No.1) and
UCMM data link receive command (No.1).
Address Item Description
Un\G393280 System area
Un\G393281 to Un\G393282 Target IP Address Specifies the IP address of the EtherNet/IP device to send the request
command to.
• Un\G393281: Lower-order word of IP address
• Un\G393282: Higher-order word of IP address
(Example: If the IP address is 192.1.0.254 [C0H.01H.00H.FEH], the lower-
order word is 00FEH and the higher-order word is C001H.)
Un\G393283 Service Specifies the service code of the EtherNet/IP device.
*1
Un\G393284 to Un\G393285 System area
Un\G393286 Class Specifies the class ID of the EtherNet/IP device.
*1
Un\G393287 Instance Specifies the instance ID of the EtherNet/IP device.
*1
Un\G393288 Attribute Specifies the attribute ID of the EtherNet/IP device.
*1
Un\G393289 Data length Specifies the data size of the EtherNet/IP device. (Unit: Bytes)
*1
Un\G393290 to Un\G393311 System area
Un\G393312 to Un\G394018 Request data Specifies the request data of the EtherNet/IP device.
*1
Un\G394019 to Un\G394047 System area
Address Item Description
Un\G394048 Result storage area Stores the processing result of 'UCMM data link request command (No.1)'
(Un\G393280 to Un\G394047).
• 0: Completed successfully
• Other than 0: Completed with an error (error code)
*1
Un\G394049 to Un\G394050 Target IP Address Stores the IP address of the EtherNet/IP device from which the response
command was sent.
• Un\G394049: Lower-order word of IP address
• Un\G394050: Higher-order word of IP address
(Example: If the IP address is 192.1.0.254, the lower-order word is 00FEH and
the higher-order word is C001H.)
Un\G394051 Service Stores the service code of the EtherNet/IP device.
*1
Un\G394052 to Un\G394053 System area
Un\G394054 Class Stores the class ID of the EtherNet/IP device.
*1
Un\G394055 Instance Stores the instance ID of the EtherNet/IP device.
*1
Un\G394056 Attribute Stores the attribute ID of the EtherNet/IP device.
*1
Un\G394057 Data length Stores the data size of the EtherNet/IP device. (Unit: Bytes)
*1
Un\G394058 to Un\G394079 System area
Un\G394080 to Un\G394786 Receive data Stores the response data of the EtherNet/IP device.
*1
Un\G394787 to Un\G394815 System area
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