请教各位:840D 中MCP的地址设的是6,我在PLC中的输入输出口从0开始编地址,那MCP中地址从什么开始,通过什么参数修改.谢谢赐教.

在FB1中MPC1IN=P#I0.0中定义,0.0可改写,若为0.0则从0.0开始,若为6.0则从6.0开始.

FB1块 通常是加密的.
定义MCP 地址通常是在 OB100中CALL FB1 中指定的 如下:
CALL "RUN_UP" , "gp_par" //FB1/DB7
MCPNum :=1
MCP1In :=P#M 64.0 //我们习惯用M,由MD64开始
MCP1Out :=P#M 164.0
MCP1StatSend :="MCP1_StatSend" //MDn
MCP1StatRec :="MCP1_StatRec" //MDn+4
MCP1BusAdr :=6
MCP1Timeout :=S5T#700MS
MCP1Cycl :=S5T#200MS
MCP2In :=P#M 72.0
MCP2Out :=P#M 172.0
MCP2StatSend :=

BHG :=0
BHGIn :=P#M 80.0
BHGOut :=P#M 180.0
BHGStatSend :="BHG_StatSend" //MD1n
BHGStatRec :="BHG_StatRec" //MD1n+4
BHGInLen :=B#16#6
BHGOutLen :=B#16#14
BHGTimeout :=S5T#700MS
BHGCycl :=S5T#100MS
BHGRecGDNo :=2
BHGRecGBZNo :=2
BHGRecObjNo :=1
BHGSendGDNo :=2
BHGSendGBZNo :=1
BHGSendObjNo :=1
BHGMPI :=TRUE
BHGStop :=FALSE
BHGNotSend :=FALSE
NCCyclTimeout :=S5T#200MS
NCRunupTimeout:=S5T#50S
ListMDecGrp :=
NCKomm :=TRUE
MMCToIF :=
HWheelMMC :=
MsgUser :=10
......