Toshiba V Series User Manual page 39

(6) Ch2 transmit/receive program
Receive:
Transmit:
S3 internal data register
RX2_DAT[0]
RX2_DAT[128]
TX2_DAT[0]
TX2_DAT[128]
30
RX2_GO
31
32
33
34
35
36
37
38
39
40
41
42
6F8C0870
Data received by Ch2 (up to 256 bytes) is stored in RX2_DAT[0] - [128].
When receive is successful, %MX12.9.6 (RX2_CMP) turns ON for 1
scan. When there is a receive error, %MX12.9.5 (RX2_ERR) is turned
ON and error information is stored in ERR_DAT[0] - [128].
Data is transmitted when it is set in TX2_DAT[0] - [128] and TX2_GO is
turned ON. When transmit is successful, %MX12.9.14 (TX2_CMP) is
turned ON for 1 scan.
When there is a transmit error, %MX12.9.13 (TX2_ERR) is turned ON and
error information is stored in ERR_DAT[0] - [128].
Ch2 receive data
128 words
Ch2 transmit data
128 words
%MX12.9.6 %MX12.9.7 %MX12.11.7
（S）
%MX12.9.7 %MX12.11.7
MREAD
E
（R）
16#4
RX2_GO
T
（R）
LD
1024
RX2_END
TADDR
LD
（S）
RX2_DAT
P
LD
128
N
LD
%MX12.9.5 %MX12.11.7
MREAD
E
（R）
16#4
RX2_ERR
T
LD （S）
16#0000
TADDR
LD
ERR_DAT
P
LD
128
N
LD
6.1 AS311 Transmission Program Example
Inside ASCII module
READ 1024W
Top address: 1024
transferred words:128
1472W
WRITE
Top address: 1472
Transferred words:128
TX2_GO %MX12.9.15
TX2_DAT
%MX12.9.14
%MX12.9.13
16#0000
ERR_DAT
Ch1 receive area
448 words
Ch1 transmit area
448 words
%MX12.11.15
MWRITE
E
（S）
16#4
T
LD
1472
TADDR
LD
P
LD
128
N
LD
%MX12.11.15
（R）
TX2_GO
（R）
TX2_END
（S）
%MX12.11.15
MREAD
E
（R）
16#4
TX2_ERR
T
LD
（S）
TADDR
LD
P
LD
128
N
LD
27
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