YASKAWA MECHATROLINK-4 JOHB-SMP3, Техническое руководство, Страница: 30 / 54

9 Main Commands
30 YASKAWA SIEP C730600 0NA MECHATROLINK-4 Technical Manual
MEM_RD Command
Byte Command Description
4 Reserved (0) Not used
5 MODE/DATA_TYPE
Specify the memory type and data type.
Refer to Table 9.6 for more information.
6
SIZE
Specify the number of readings. For example, if DATA_TYPE = 2 (2 bytes) and SIZE = 1, 2 bytes of data are read.
The specifiable range depends on the DATA_TYPE.
•
When DATA_TYPE = 1: 1 to 20
•
When DATA_TYPE = 2: 1 to 10
•
When DATA_TYPE = 3: 1 to 5
7
8
ADDRESS
Specify the address of virtual memory.
Refer to Figure 9.1 for more information.
9
10
11
12
Reserved (0) Not used
13
14
・
・
63
MEM_RD Response
Byte Response Description
0 MEM_RD (1D (Hex.)) Command code
1 RWDT Watchdog data
2
CMD_STAT Refer to page 18 .
3
4 Reserved (0) Not used
5 MODE/DATA_TYPE The value set in the command.
6
SIZE The value set in the command.
7
8
ADDRESS The value set in the command.
9
10
11
12
DATA The data read from virtual memory is stored.
13
14
・
・
63
Table 9.6 MODE/DATA_TYPE Bits
MODE DATA_TYPE
bit7 bit6 bit5 bit4 bit3 bit2 bit1 bit0
1: Volatile memory 1: Byte type (1 byte)
2: Short type (2 bytes)
3: Long type (4 bytes)