Mitsubishi Electric Melsec iQ-R Series User Manual page 138

HART command answer data size
Data size of an enabled HART command is stored. The setting values differ depending on the specifications of a HART
command set to 'HART command request code' (Un\G2202) and the specifications of the used HART-enabled device.
When 'HART command request flag' (Un\G2200) is set to No request (0), this area is cleared to 0. When Command execution
error (1) is stored in bit 15 of 'HART command answer flag' (Un\G2344), 0 remains stored in this area.
■Buffer memory address
The following shows the buffer memory address of this area.
Buffer memory name
HART command answer data size
HART command answer data
Answer data sent from a HART-enabled device is stored. As a setting area, 128 words of the buffer memory areas are
assigned. The setting values differ depending on the specifications of a HART command set to 'HART command request
code' (Un\G2202) and the specifications of the used HART-enabled device. The status information of the HART-enabled
device is stored in the first 2 bytes.
When 'HART command request flag' (Un\G2200) is set to No request (0), this area is cleared to 0. When Command execution
error (1) is stored in bit 15 of 'HART command answer flag' (Un\G2344), 0 remains stored in this area.
■Buffer memory address
The following shows the buffer memory address of this area.
Buffer memory name
HART command answer data
CH1 HART device information (tag)
Tag details set to a HART-enabled device by users are stored. Four words of the buffer memory areas are used per channel.
■Stored value
• The set tag details are converted to 8 characters of ASCII code (hexadecimal) and stored.
• The first character is stored in the lower byte (LSB) of the lowest address.
• A space (code: 20H) is assigned to the last character.
Ex.
When a tag of a CH1 HART device is 1234
0 0 0
30H 30H 30H 20H
Un\G2503 Un\G2502
■Buffer memory address
The following shows the buffer memory address of this area.
Buffer memory name
CH HART device information (tag)
APPX
136
Appendix 3 Buffer Memory Areas
CH1
2347
CH1
2348 to 2475
4 3 2 1
34H 33H 32H 31H
Un\G2501 Un\G2500
CH1 CH2
2500 to 2600 to
2503 2603
CH2 CH3 CH4
CH2 CH3 CH4
CH3 CH4
2700 to 2800 to
2703 2803
CH5 CH6 CH7
CH5 CH6 CH7
CH5 CH6 CH7
2900 to 3000 to 3100 to
2903 3003 3103
CH8
CH8
CH8
3200 to
3203