Lenze E94P PositionServo Modbus - Manual (Page 15)

15 P94MOD01C
Commissioning
4 Commissioning
4.1 Overview
It is assumed that the user has familiarised themselves with how to set parameters using MotionView software.
Refer to the PositionServo with MVOB User Manual (S94PM01) for more details. The details that follow provide
a step-by-step guide to quickly and easily set-up a PositionServo drive to communicate on a Modbus network
4.2 Configuring the Network Master/Client
The method for configuring master/client devices differs greatly between manufacturers. Provided herein is
a very basic, generic guide to setting up a network master/client. Consult the master/client manufacturer for
configuration assistance if required.
1. Launch the Master/client configuration software.
2. Setup the Master/client Modbus port as required. Refer to Table 4.
Table 4: Modbus RTU and Modbus TCP/IP Settings
Modbus RTU Master settings Modbus TCP Client settings
Node address IP Address or DHCP enabled
Baud rate Subnet mask set as required, i.e. 255.255.255.0
Data bits = 8 (for Modbus RTU) Gateway set as required
Parity Service port = 502
Stop bits Baud rate set as required, i.e. 100Mbps
Flow control
3. Add generic Modbus slave/server node to the master/client
4. Set the slave/server node address.
5. Assign the Modbus slave/service registers as required.
NOTE:
In true Modbus, 3X and 4X Registers are numbered starting at 1. This is known as ‘one based’
addressing. However, when transmitted to a slave over the serial link, the actual address transmitted
is one less.
Some Modbus masters will allow for the first register number to be 0. This is known as ‘zero based’
addressing. If this is the case, the Modbus register numbers listed in this manual must be offset by
-1 to properly program a master using ‘zero-based’ addressing.
Refer to Section 6 for a list of the PositionServo Modbus registers.