Panasonic FP7 User Manual page 234

MC Protocol Communication Function
 Device code of MC protocol
• A device code is inserted in the request data part of a command as a hexadecimal 2-digit
one-byte code which indicates the information of device type.
• For performing the master communication from the FP7 CPU unit, specify corresponding
numbers from H0 to H8in the operance of the SEND and RECV instructions respectively.
They are converted to device codes when the SEND and RECV instructions are executed,
and sent.
 Device type and transfer unit
• Transferable units differ depending on device types. They are identified by subcommands in
the protocol.
• This is an example of using all data as global devices. When using local devices, the
maximum values are less than the following memory settings.
 The maximum values of usable data registers DT according to models and memory
settings
FP7 model
CPS41ES/CPS41E
Program capacity (No. of
steps)
Data register capacity (No. of
words)
FP7 model
CPS31ES/CPS31E
Program capacity (No. of
steps)
Data register capacity (No. of
words)
REFERENCE
There is a limit to the range that can be used in the master communication
•
function. For details, refe to 9.6.2 RECV Instruction (MC Protocol) and 9.7.2
SEND Instruction (MC Protocol).
9-10
Selectable memory settings
Pattern 1 Pattern 2
234000 221500
65536 131072
Selectable memory settings
Pattern 1 Pattern 2
121500 96000
131072 262144
Pattern 3 Pattern 4
196000 144500
262144 524288
Pattern 3 Pattern 4
64000 32000
425984 589824
Pattern 5
51500
999424