Datalogic Matrix 120, Product Reference Manual

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NOTE
PASS-THROUGH
PRODUCT REFERENCE GUIDE 73
PASS-THROUGH
The pass-through layout allows each device to collect data from one or more pass-
through input channels and send this data plus its own on one or more different output
channels.
In this way independent devices can be connected together in combinations to create
multi device networks. Many devices reading independently can send their messages
through a common output channel which instead of being directed at a Host can be col-
lected by another device on its pass-through input channel and sent to a Host on a dif-
ferent output channel.
Host
Phase
CAB-ETH-M0x



Ethernet TCP/IP Server 1
Ethernet TCP/IP Server 2
Main Serial Interface (RS232 or RS422 Full-Duplex)
Pass-through Input Channel
Output Channel



Switch
Mode
Continuous
Mode
External
Trigger



10-30 Vdc
power
Figure 56 - Pass-Through Layout
In a Pass-through layout each device supports multiple pass-through configurations to
accept input from different devices on different channels (i.e. middle reader above). How-
ever, readers are not required to have a pass-through configuration if they don’t need to
receive data from an input channel (i.e. right reader above). The overall data collection
device always has at least one pass-through configuration to collect the input data from
the other devices and send it to the Host (i.e. left reader above).
Matrix 120™ Ethernet models support Ethernet/IP, Modbus TCP and
PROFINET-IO Fieldbus interfaces without the use of external Fieldbus
modules. See Ethernet Connection.