规格
Modbus Slave Specifications
Status Data: Slave port error codes, counters and statuses are available separately for each port when configured as a Slave
Modbus Slave Specifications
Node address: 1 to 247 (software selectable)
Multi-source Slave data: Data presented at the Slave port can be derived from other Modbus Slave devices on a different network through the module's Master port or from the processor tag database.
Full Memory Access: A port configured as a Modbus Slave permits a remote Master to read from or write to any of the 5000 registers that make up the user memory database.
Modbus Master Specifications
Slave Polling Control: Master Port maintains a Slave Status list of all network Slaves. Polling of each Slave may be disabled and enabled using this list.
Command Status/Error Monitoring: Command Status or Error codes are generated for each command as it executes, allowing careful monitoring o fcommunication health between the Master and its Slaves.
Command List: Up to 325 commands per Master port, each fully configurable for function code, slave address, register to/from addressing and word/bit count.
Optimized Polling: Configuration options allow Master ports and commands to be optimized to poll slaves with communication problems less frequently.
具有減少數據塊的MVI56E-MCMR增強型Modbus主/從通信模塊使羅克韋爾自動化®ControlLogix®處理器能夠使用Modbus RTU / ASCII串行通信協議輕鬆連接設備。兼容設備包括各種儀器，過程測量設備，流行品牌的可編程邏輯控制器（PLC）和可編程自動化控制器（PAC）。 MVI56E-MCMR充當ControlLogix背板上的輸入/輸出模塊，使Modbus數據顯示為處理器的I / O數據。與處理器之間的背板數據傳輸與Modbus網絡上的通信異步。兩個可獨立配置的串行端口可以在相同或不同的Modbus網絡上運行。每個端口都可以配置為Modbus主站或從站，共享相同的用戶控制的5000字數據庫。
