做网站成功的企业,制作微信公众号,创建全国文明城市主题班会教案,成都网站运营维护厂家本文使用modbus slave软件模拟一个受控的modbus设备#xff0c;此模拟设备提供如下功能#xff1a;
1、线圈组1#xff0c;8个线圈#xff0c;起始地址为0#xff0c;数量为8#xff0c;软件设置如下(功能码1)#xff0c;用于测试功能码5#xff0c;一次写一个线圈此模拟设备提供如下功能
1、线圈组18个线圈起始地址为0数量为8软件设置如下(功能码1)用于测试功能码5一次写一个线圈 2、线圈组28个线圈起始地址为8数量为8软件设置如下(功能码1)用于测试功能码15一次写多个线圈。 3、离散输入组8个二进制离散输入起始地址为0数量为8软件设置如下(功能码2) 使用EPICS Modbus模块对以上modbus设备进行读写过程如下
使用makeBaseApp.pl构建IOC程序框架并且在configure/RELEASE中指定base所在路径以及所需要的支持模块modbus路径。在程序的src路径下Makefile中指定要添加的数据块定义文件和库文件。
在程序的Db目录下编写如下模板文件
1 bo_bit.template用于写modbus设备的单线圈
record(bo,$(P)$(R)) {field(DTYP,asynUInt32Digital)field(OUT,asynMask($(PORT) $(OFFSET) 0x1))field(ZNAM,$(ZNAM))field(ONAM,$(ONAM))
}
2bi_bit.template用于读modbus设备的线圈状态或者离散输入状态
record(bi,$(P)$(R)) {field(DTYP,asynUInt32Digital)field(INP,asynMask($(PORT) $(OFFSET) 0x1))field(SCAN,$(SCAN))field(ZNAM,$(ZNAM))field(ONAM,$(ONAM))field(ZSV,$(ZSV))field(OSV,$(OSV))
}
3wfo_bit.template用于一次写modbus设备的多个线圈
record(waveform,$(P)$(R)) {field(DTYP,asynInt32ArrayOut)field(INP,asyn($(PORT) $(OFFSET0))MODBUS_DATA)field(FTVL,ULONG)field(NELM,$(NELM))
}
4 wfi_bit.template用于读取modbus设备多个线圈状态或这多个离散输入状态。
record(waveform,$(P)$(R)) {field(DTYP,asynInt32ArrayIn)field(INP,asyn($(PORT) $(OFFSET0))MODBUS_DATA)field(SCAN,$(SCAN))field(FTVL,ULONG)field(NELM,$(NELM))
}
将以上模板文件添加到相同路径下Makefile文件中
...
DB bo_bit.template
DB bi_bit.template
DB wfo_bit.template
DB wfi_bit.template
...
回到IOC顶层目录执行make命令编译这个IOC。
进入到启动目录iocBoot/iocmodbusbit中编写记录实例化文件
1coil_bo_bits.substitutions用于实例化8个bo记录每个bo写modbus设备1个线圈。
file ../../db/bo_bit.template { pattern
{P, R, PORT, OFFSET, ZNAM, ONAM}
{COUT:, CO0B, C0_Out_Bits, 0, Low, High}
{COUT:, CO1B, C0_Out_Bits, 1, Low, High}
{COUT:, CO2B, C0_Out_Bits, 2, Low, High}
{COUT:, CO3B, C0_Out_Bits, 3, Low, High}
{COUT:, CO4B, C0_Out_Bits, 4, Low, High}
{COUT:, CO5B, C0_Out_Bits, 5, Low, High}
{COUT:, CO6B, C0_Out_Bits, 6, Low, High}
{COUT:, CO7B, C0_Out_Bits, 7, Low, High}
}
2coil_bi_bits.substitutions用于实例化16个bi记录每个bi读取modbus设备1个线圈状态。
file ../../db/bi_bit.template { pattern
{P, R, PORT, OFFSET, ZNAM, ONAM, ZSV, OSV, SCAN}
{CIN:, CI00B, C0_In_Bits, 0, Low, High, NO_ALARM, MAJOR, I/O Intr}
{CIN:, CI01B, C0_In_Bits, 1, Low, High, NO_ALARM, MAJOR, I/O Intr}
{CIN:, CI02B, C0_In_Bits, 2, Low, High, NO_ALARM, MAJOR, I/O Intr}
{CIN:, CI03B, C0_In_Bits, 3, Low, High, NO_ALARM, MAJOR, I/O Intr}
{CIN:, CI04B, C0_In_Bits, 4, Low, High, NO_ALARM, MAJOR, I/O Intr}
{CIN:, CI05B, C0_In_Bits, 5, Low, High, NO_ALARM, MAJOR, I/O Intr}
{CIN:, CI06B, C0_In_Bits, 6, Low, High, NO_ALARM, MAJOR, I/O Intr}
{CIN:, CI07B, C0_In_Bits, 7, Low, High, NO_ALARM, MAJOR, I/O Intr}
{CIN:, CI08B, C1_In_Bits, 0, Low, High, NO_ALARM, MAJOR, I/O Intr}
{CIN:, CI09B, C1_In_Bits, 1, Low, High, NO_ALARM, MAJOR, I/O Intr}
{CIN:, CI10B, C1_In_Bits, 2, Low, High, NO_ALARM, MAJOR, I/O Intr}
{CIN:, CI11B, C1_In_Bits, 3, Low, High, NO_ALARM, MAJOR, I/O Intr}
{CIN:, CI12B, C1_In_Bits, 4, Low, High, NO_ALARM, MAJOR, I/O Intr}
{CIN:, CI13B, C1_In_Bits, 5, Low, High, NO_ALARM, MAJOR, I/O Intr}
{CIN:, CI14B, C1_In_Bits, 6, Low, High, NO_ALARM, MAJOR, I/O Intr}
{CIN:, CI15B, C1_In_Bits, 7, Low, High, NO_ALARM, MAJOR, I/O Intr}
}
3dis_bi_bits.substitutions用于实例化8个bi记录每个bi取modbus设备离散输入状态。
file ../../db/bi_bit.template { pattern
{P, R, PORT, OFFSET, ZNAM, ONAM, ZSV, OSV, SCAN}
{DIN:, DI00B, D0_In_Bits, 0, Low, High, NO_ALARM, MAJOR, I/O Intr}
{DIN:, DI01B, D0_In_Bits, 1, Low, High, NO_ALARM, MAJOR, I/O Intr}
{DIN:, DI02B, D0_In_Bits, 2, Low, High, NO_ALARM, MAJOR, I/O Intr}
{DIN:, DI03B, D0_In_Bits, 3, Low, High, NO_ALARM, MAJOR, I/O Intr}
{DIN:, DI04B, D0_In_Bits, 4, Low, High, NO_ALARM, MAJOR, I/O Intr}
{DIN:, DI05B, D0_In_Bits, 5, Low, High, NO_ALARM, MAJOR, I/O Intr}
{DIN:, DI06B, D0_In_Bits, 6, Low, High, NO_ALARM, MAJOR, I/O Intr}
{DIN:, DI07B, D0_In_Bits, 7, Low, High, NO_ALARM, MAJOR, I/O Intr}
}
4coil_wfo_bits.substitutions实例化一个waveform记录用于一次最多设置modbus设备8个线圈。
file ../../db/wfo_bit.template { pattern
{P, R, PORT, OFFSET, NELM}
{COUT:, WFO, C0_Out_WF, 0, 8}
}
5 dis_wfi_bits.substitutions实例化一个waveform记录用于读取modbus设备8个离散输入的状态。
file ../../db/wfi_bit.template { pattern
{P, R, PORT, OFFSET, , NELM , SCAN}
{DIN:, WFI, D0_In_Bits, 8, 8, I/O Intr}
}
编写启动脚本st.cmd
#!../../bin/linux-x86_64/modbuspoll#- You may have to change modbuspoll to something else
#- everywhere it appears in this file envPathscd ${TOP}## Register all support components
dbLoadDatabase dbd/modbuspoll.dbd
modbuspoll_registerRecordDeviceDriver pdbbase# 连接modbus设备
drvAsynIPPortConfigure(mpoll,192.168.3.15:502,0,0,1)
# 使用modbus tcp类型
modbusInterposeConfig(mpoll, 0 ,2000,0)# 用于写线圈起始地址0每次写1个一共写8次
drvModbusAsynConfigure(C0_Out_Bits, mpoll, 0, 5, 0, 8, 0, 100, mpoll)
# 用于写线圈起始地址8一次写8个线圈
drvModbusAsynConfigure(C0_Out_WF, mpoll, 0, 15, 8, 8, 0, 100, mpoll)# 用于读线圈起始地址0每次读取一个一共读8次轮询时间为500ms
drvModbusAsynConfigure(C0_In_Bits, mpoll, 0, 1, 0, 8, 0, 500, mpoll)
# 用于读线圈起始地址8每次读取一个一共读8次轮询时间为500ms
drvModbusAsynConfigure(C1_In_Bits, mpoll, 0, 1, 8, 8, 0, 500, mpoll)# 用于读取离散输入起始地址0每次读取一个读取8次轮询时间100ms
drvModbusAsynConfigure(D0_In_Bits, mpoll, 0, 2, 0, 8, 0, 100, mpoll)cd ${TOP}/iocBoot/${IOC}
# 加载实例化记录
# 写线圈
dbLoadTemplate(coil_bo_bits.substitutions)
# 写线圈
dbLoadTemplate(coil_wfo_bits.substitutions)
# 读线圈
dbLoadTemplate(coil_bi_bits.substitutions)
# 读离散输入
dbLoadTemplate(dis_bi_bits.substitutions)
# 读离散输入
dbLoadTemplate(dis_wfi_bits.substitutions)iocInit启动这个IOC
[rootlocalhost iocmodbusbit]# ../../bin/linux-x86_64/modbuspoll st.cmd
#!../../bin/linux-x86_64/modbuspoll
...
# bit write
drvModbusAsynConfigure(C0_Out_Bits, mpoll, 0, 5, 0, 8, 0, 100, mpoll)
# bit array write
drvModbusAsynConfigure(C0_Out_WF, mpoll, 0, 15, 8, 8, 0, 100, mpoll)
# Coil bit Read
drvModbusAsynConfigure(C0_In_Bits, mpoll, 0, 1, 0, 8, 0, 500, mpoll)
drvModbusAsynConfigure(C1_In_Bits, mpoll, 0, 1, 8, 8, 0, 500, mpoll)
# Discrete bit Read
drvModbusAsynConfigure(D0_In_Bits, mpoll, 0, 2, 0, 8, 0, 100, mpoll)
cd /usr/local/EPICS/program/modbuspoll/iocBoot/iocmodbusbit
dbLoadTemplate(coil_bo_bits.substitutions)
dbLoadTemplate(coil_wfo_bits.substitutions)
dbLoadTemplate(coil_bi_bits.substitutions)
dbLoadTemplate(dis_bi_bits.substitutions)
dbLoadTemplate(dis_wfi_bits.substitutions)
iocInit
Starting iocInit
...
## Start any sequence programs
#seq sncxxx,userblctrl
epics dbl
COUT:CO0B
COUT:CO1B
COUT:CO2B
COUT:CO3B
COUT:CO4B
COUT:CO5B
COUT:CO6B
COUT:CO7B
COUT:WFO
DIN:WFI
CIN:CI00B
CIN:CI01B
CIN:CI02B
CIN:CI03B
CIN:CI04B
CIN:CI05B
CIN:CI06B
CIN:CI07B
CIN:CI08B
CIN:CI09B
CIN:CI10B
CIN:CI11B
CIN:CI12B
CIN:CI13B
CIN:CI14B
CIN:CI15B
DIN:DI00B
DIN:DI01B
DIN:DI02B
DIN:DI03B
DIN:DI04B
DIN:DI05B
DIN:DI06B
DIN:DI07B1) COUT:CO0B~COUT:CO7Bbo记录每个bo记录用于写一个线圈。
2COUT:WFwaveform记录用于一次写8个线圈。
3DIN:WFIwaveform记录用于读取8个离散输入。
4CIN:CI00B~CIN:CI15Bbi记录每个bi记录读取一个线圈状态。
5DIN:DI00B~DIN:DI00Bbi记录每个bi记录读取一个离散输入。
用css绘制控制界面进行记录连接后如下所示 1顶层窗口区域Coil Out按钮写线圈Coil In回读线圈状态
2中间窗口区域Coil Array Out可以一次最多写8个线圈Coil In回读线圈状态。
3底层窗口区域用于读取离散输入离散输入状态需要在modbus slave窗口中设置 Discrete Bit in 和Discrete Bit Array In都回读modbus slave窗口中设置的离散输入的状态。
