64
IMS-MN-LMDE42C_A
Software Operation Modes
Liberty MDrive Ethernet TCP/IP
The network architecture shown below is an example of immediate mode operation. All system
control is dictated by the programming of the host.
Host
LMDM 1
LMDM 2
Display
LMDM n
Sensor
Sensor
Request
Response
Response
Response
Program Mode - MCode/TCP, MODBUS/TCP, or Ethernet/IP
In Program Mode, the device may operate as a standalone controller. The LMD will respond
programmatically to inputs, set outputs based on flag states or register values, and send
register values over the network as instructed by the programming of the device.
This mode functionality allows the device to be used to initiate and respond to process events
in a distributed intelligence system.
The network architecture shown below is an example of program mode operation. All system
control is dictated by the programming of the individual LMDs, which can perform system
process actions based up I/O events. The host is in place for monitoring the system.
NOTE:
Specific requirements must be met to use Program Mode for the Ethernet/IP protocol.
Refer to the following Application Note for additional information:
https://novantaims.com/application-note/executing-mcode-program-ethernetip/
Host
LMDM 1
LMDM 2
Display
NETWORK
LMDM n
Sensor
Sensor
MODBUS/TCP Protocol Exceptions
In MODBUS/TCP, the program is executed via a function code. Status and position information
may be stored in preset registers which may be polled by the MODBUS PLC or Controller.
