MVI56-N2
ModDef设置
MCM。配置。MODDEF标记定义用于读取的5000个数据寄存器
并在MVI56-MCM模块内写入数据。您将使用这些数据读取和
在每个主命令内的IntAddress标记中写入位置（第45页）。
下图显示了示例程序中的值。
WRITESTARTREG标记确定
WRITEDATA[0到599]数组。WRITEREGCNT标记确定
5000个寄存器用于向模块发送数据。示例梯形图文件使用
600个写数据寄存器，标记为MCM。WRITEDATA[0到599]。
标签说明
WRITESTARTREG指定在5000寄存器模块内存中放置发送数据的位置
来自ControlLogix处理器中的WriteData标记。
WRITEREGCNT指定MVI56-MCM模块将有多少个数据寄存器
来自ControlLogix处理器的请求。因为模块页面
数据以200字为单位，此数字必须能被
200
READSTARTREG指定模块读取数据区域中要发送到的寄存器
ControlLogix处理器中的ReadData标记。
READREGCNT设置MVI56-MCM模块将发送到的数据寄存器数量
ControlLogix处理器。该值还应为200的倍数。
BPFAIL设置将导致
模块停止Modbus网络上的通信。通常使用
当模块配置为从模块时。
ERRSTATPTR也主要用于将模块配置为从属模块时。这
参数将状态数据放置到模块的数据库中。

ModDef Settings The MCM.CONFIG.MODDEF tag defines the 5000 data registers to use for read and write data within the MVI56-MCM module. You will use these data read and write locations in the IntAddress tag within each Master Command (page 45). The following illustration shows the values from the sample program. The WRITESTARTREG tag determines the starting register location for the WRITEDATA[0 to 599] array. The WRITEREGCNT tag determines how many of the 5000 registers to use to send data to the module. The sample ladder file uses 600 registers for write data, labeled MCM.WRITEDATA[0 to 599]. Label Description WRITESTARTREG Specifies where in the 5000 register module memory to place data sent from the WriteData tags in the ControlLogix processor. WRITEREGCNT Specifies how many registers of data the MVI56-MCM module will request from the ControlLogix processor. Because the module pages data in blocks of 200 words, this number must be evenly divisible by 200. READSTARTREG Specifies which registers in the module’s read data area to send to the ReadData tags in the ControlLogix processor. READREGCNT Sets how many registers of data the MVI56-MCM module will send to the ControlLogix processor. This value should also be a multiple of 200. BPFAIL Sets the consecutive number of backplane failures that will cause the module to stop communications on the Modbus network. Typically used when the module is configured as a Slave. ERRSTATPTR Also used mainly when the module is configured as a Slave. This parameter places the STATUS data into the database of the module.