167
13−3−3.
Sample program for RS−422
1000 '
1010 '---------------------------------------------
1020 'CSD−814B Sample program for RS−422
1030 'Minebea Co., Ltd. Measuring Components Div.
1040 '---------------------------------------------
1050 '
1060 'Transfers data to ID0 and ID2 orderly.
1070 'It is decided as “Time−out” when the data is not returned within 3 s
after transferring command.
1080 '----------------< Start >-----------------
1090 '
1100 CLS
1110 '----------------< Command Table >---------------
1120 OPTION BASE 1 : DIM TXD$(10), IXD$(10)
1130 '
1140 TXD$(1) = “R020” : INX$(1) = “Reading−out display value for ID0”
1150 TXD$(2) = “R122” : INX$(2) = “Reading−out Net Weight for ID1”
1160 TXD$(3) = “R224” : INX$(3) = “Reading−out Gross Weight for ID2”
1170 TXD$(4) = “R030” : INX$(4) = “Reading−out S1 set value for ID0”
1180 TXD$(5) = “R131” : INX$(5) = “Reading−out S1 set value for ID1”
1190 TXD$(6) = “R232” : INX$(6) = “Reading−out S1 set value for ID2”
1200 '
1210 '----------------< RS port declaration >----------------
1220 OPEN “COM : 071NN” AS #1 : ’Odd number parity, Data length : 7 bits
Stop bit : 1 bit
1230 ON COM GOSUB 1740 : ’Receiving process : Interruption drives.
1240 COM ON
1250 '
1260 '----------------< Initial setting >-----------------
1270 C = 10 : ’Data counter limit
1280 S = 1 : ’Data pointer
1290 NN# = 0 : ’Receiving counter
1300 TM = 3 : ’Time−out limit (second)
1310 SW = 0 : ’RS receiving flag
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