3.7.4 ID-NET Interface
TCNM-ACBB1 Function
Shield
ID+
ID-
REF
Network Cable Shield
ID-NET network +
ID-NET network -
Network Reference
ID-NET Cables
The following instructions refer to the figures in
ID-NET Network Termination
on page 25.
• The general cable type specifications
are: CAT5 twisted pair + additional CAT5 twisted pair, shielded cable AWG 24
(or AWG 22) stranded flexible
It is recommend to use DeviceNet cables (drop or trunk type) to the following reference standards:
AN50325 – IEC 62026
UL STYLE 2502 80°C 30V
•
Cable Shield MUST be connected to earth ground ONLY at the Master
• NEVER use ID-NET cable shield as common reference
• The ID-NET max cable length depends on the baudrate used (see the Baudrate table, below)
• For Common Power Connections use only 2 wires (ID+ and ID-)
◦ DC Voltage Power cable (Vdc – GND) should be handled as a signal cable (that is, do not put it together with
AC cable)
◦ Wire dimensioning must be checked in order to avoid voltage drops greater than 0.8 Volts
◦ Cable should lie down as near as possible to the ID-NET cable (avoiding wide loops between them)
• Reader's chassis may be connected to earth
• Network inside the same building
Table 3: Baudrate
Baud Rate 125 kbps 250 kbps 500 kbps 1Mbps
Cable Length 1200 m 900 m 700 m Application
dependent; contact
Banner Engineering for
details.
Note: The default ID-NET baudrate is 500 kbps. Lower ID-NET baudrates allow longer cable lengths.
ID-NET Response Time
The following figure shows the response time of the ID-NET network. This time is defined as the period between the Trigger
activation and the beginning of data transmission to the Host.
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