工控编程吧

标题: bsend里的ID和R_ID具体指什么 [打印本页]

作者: baikhgmv 时间: 2016-9-15 15:13
标题: bsend里的ID和R_ID具体指什么
bsend里的ID和R_ID具体指什么 看手册没看懂，有没有能给个图示的

---------有没有大侠帮忙看看以下的bsend 和bcrv写的哪里错了，运行时bcrv的ERROR为1，status为4

PLC1和PLC2建立S7连接，本地ID为100

谢谢！

L    W#16#100
   T    "PLC1SENDPLC2".Static_1.PLC1SENDPLC2_LEN
   NOP 0

   CALL  BSEND , "BSEND_DB"
      ptr_type:=Variant
      REQ :=true
      R    :="PLC1SENDPLC2".Static_1.PLC1SENDPLC2_R
      ID    :=W#16#100
      R_ID :=DW#16#1
      DONE :="PLC1SENDPLC2".Static_1.PLC1SENDPLC2_DONE
      ERROR  :="PLC1SENDPLC2".Static_1.PLC1SENDPLC2_ERROR
      STATUS :="PLC1SENDPLC2".Static_1.PLC1SENDPLC2_STATUS
      SD_1 :=P#DB51.DBX0.0 BYTE 100
      LEN :="PLC1SENDPLC2".Static_1.PLC1SENDPLC2_LEN

L    W#16#100
   T    "PLC1RECVPLC2".Static_1.PLC1RECVPLC2_LEN
   NOP 0

   CALL  BRCV , "BRCV_DB"
      ptr_type:=Variant
      EN_R :=TRUE
      ID    :=W#16#100
      R_ID :=DW#16#2
      NDR :="PLC1RECVPLC2".Static_1.PLC1RECVPLC2_NDR
      ERROR  :="PLC1RECVPLC2".Static_1.PLC1RECVPLC2_ERROR
      STATUS :="PLC1RECVPLC2".Static_1.PLC1RECVPLC2_STATUS
      RD_1 :=P#DB52.DBX0.0 BYTE 100
      LEN :="PLC1RECVPLC2".Static_1.PLC1RECVPLC2_LEN

--------ID：s7 connection的local ID

R _ID: 接收到的数据是对方具有相等R_ID数值的那个发送所发出的数据，不同的发送/接收对使用不同的R_ID值

欢迎光临工控编程吧 (https://www.gkbc8.com/)