Mitsubishi Electric Melsec QJ71LP21 Reference Manual page 253

7 APPLICATION FUNCTIONS
7 - 29
POINT
Whether or not channel No.-specified transient transmission has been executed
cannot be verified.
If it is executed consecutively, the no free area in the receive buffer error (error
code: F222) may occur. Properly design the system to leave execution intervals
and perform a test (debugging) so that transmission can be executed
consecutively.
(2) Setting method
Set the logical channel numbers in the link special registers (SW0008 to
SW000F) with the sequence program.
SW No.
SW0008 Logical channel setting (channel 1)
SW0009 Logical channel setting (channel 2)
SW000A Logical channel setting (channel 3)
SW000B Logical channel setting (channel 4)
SW000C Logical channel setting (channel 5)
SW000D Logical channel setting (channel 6)
SW000E Logical channel setting (channel 7)
SW000F Logical channel setting (channel 8)
1: The logical channel number is processed as the actual channel number
when "0" is set.
(3) Transient transmission instruction that allows logical channel
specification
No. Instruction
1 SEND
Name Valid setting range
Description
Sends data
MELSEC-Q
Default
0: (Logical channel 1)
1 to 64
0: (Logical channel 2)
1 to 64
0: (Logical channel 3)
1 to 64
0: (Logical channel 4)
1 to 64
0: (Logical channel 5)
1 to 64
0: (Logical channel 6)
1 to 64
0: (Logical channel 7)
1 to 64
0: (Logical channel 8)
1 to 64
Reference
Section 7.4.5 (1) (d)
1
1
1
1
1
1
1
1
7 - 29