Mitsubishi Electronics A1SJ71AP23Q Benutzerhandbuch
7
- 5
7.2 Program for Refresh and for Receiving LRDP/LWTP Instruction
7
PROGRAMMING
(b) Device list
Devices used in the program are shown.
Note that the local module is mounted in the position indicated as I/O No. X/Y200
to X/Y21F.
Note that the local module is mounted in the position indicated as I/O No. X/Y200
to X/Y21F.
* 1 The range of device use varies depending on the link parameters of the master station.
* 2 The range of device use varies depending on the start devices and the points that are specified by
* 2 The range of device use varies depending on the start devices and the points that are specified by
the LRDP/LWTP instruction of the master station.
* 3 Can be replaced with other devices as necessary.
However, to avoid wrong replacements, we recommend using the program examples described in
the manual without changes.
the manual without changes.
Table 7.2 Device list
Device
Description
X200
Link status
X201
B/W initial value setting status
X207
Refresh ready status
Y210
CPU operating status
Y211
Refresh in execution
Y216
Refresh request
Link data
-
X1000 to X17FF
*1
Input
Y1000 to Y17FF
*1
Output
B0 to BFFF
*1
Link relay
W0 to WFFF
*1
Link register
LRDP/LWTP instruction target
-
T0 to T2047
*2
Timer
C0 to C1023
*2
Counter
D0 to D6144
*2
Data register
W0 to WFFF
*2
Link register
SM400
Always ON
SM402
After RUN, ON for 1 scan only
SD2040 to SD2041
*3
Presence or absence of refresh information table (Protects device values.)
SD2042 to SD2044
*3
Z0 to Z2 save area (Protects device values.)
SM1240 to SM1255
Special relay (for link) (M9240 to M9255)
SD1243 to SD1255
Special register (for link) (D9243 to D9255)
Z0
• When link data are sent/received
Index register for device start number specification
• On the receive processing of the LRDP/LWTP instruction
Index register for start device name specification
Z1
• When link data are sent/received
Index register for device points specification
• On the receive processing of the LRDP/LWTP instruction
Index register for start device No. specification
Z2
• When link data are sent/received
Index register for bit device start number specification (a register equivalent to Z0,
whose unit is converted from bit to word for index modification in link data storage
area when the start number of the bit device is stored in Z0)
whose unit is converted from bit to word for index modification in link data storage
area when the start number of the bit device is stored in Z0)
• On the receive processing of the LRDP/LWTP instruction
Index register for data length specification