Pilz PNOZ m B0 - Manual (Page 46)

Modbus/TCP
Operating Manual PNOZmulti 2 Communication Interfaces
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6.3 Modbus/TCP with PNOZmulti 2
An interface for communication via Modbus/TCP is provided on the PNOZmulti 2 through
the communication module PNOZ m ES ETH.
A PNOZ m ES ETH can manage a max. of 8 Modbus/TCP connections. The PNOZmulti 2
is always the Server in a connection. The connection Clients may be various devices, e.g.
PC (PNOZmulti Configurator), control system, display unit. They can access the configur­
able control system PNOZmulti 2 simultaneously.
The virtual I/Os plus all the information that is polled during fieldbus communication are
contained in data areas. The data is accessed directly. It's no longer necessary to switch
via table/segment.
PC
192.168.1.60
PMI
192.168.1.10
PSSu-System
192.168.1.100
PNOZ m B0 +
PNOZ m ES ETH
192.168.1.110
PNOZ mm0.1p +
PNOZ mmc1p ETH
192.168.1.2
PNOZ m1p ETH
192.168.1.1
The configurations required for Modbus/TCP are fully pre­configured in the PNOZmulti 2
operating system. All that's necessary in the PNOZmulti Configurator is to activate the vir­
tual inputs and outputs (see PNOZmulti Configurator's online help, under "Display and edit
module selection").
On a configurable control system PNOZmulti 2 , port number "502" is fixed as the default
for data exchange via a Modbus/TCP connection. It is not displayed in the PNOZmulti Con­
figurator and cannot be modified.