User guide

ENTEGRIS, INC. Customer Service Tel. [phone] Customer Service Fax [phone]
NT® INTEGRATED FLOW CONTROLLER WITH DEVICENET™ COMMUNICATION USER GUIDE
DeviceNet
TM
Node Address
Switches
Two, ten-position, rotary switches
used for configuring the Media
Access Control Identifier (MACID)
of the flow controller. These switch-
es specify the MACID using decimal
representation. One switch specifies
the most significant digit (MSD), or
tens position of the MACID. The
second switch specifies the least sig-
nificant digit (LSD) or the ones po-
sition of the MACID. DeviceNet
TM
allows MACIDs with values 0–63.
The “PGM” label indicates the soft-
ware programmable switch positions.
DeviceNet
TM
Data Rate Switch
A single, ten-position rotary switch
used for configuring the baud rate
of the flow controller. The switch
has positions for the three valid,
DeviceNet
TM
data rates, 125, 250
and 500 Kbaud. Switch position 0
selects 125 Kb, position 1 selects
250 Kb, and position 2 selects 500
Kb. The “PGM” label indicates the
software programmable switch
positions.
Electrical Isolation
The degree of electrical isolation
between power and DeviceNet
TM
communication is as listed below:
Reverse Polarity Protection
The flow controller is reverse polarity
protected; connecting the 24 VDC
power to the incorrect positive and
ground wires will not harm the unit.
To operate properly, the polarity
must be correct.
Over-Voltage on any Wire (DC)
The flow controller will withstand
the continuous application of 30
VDC on any wire without compromis-
ing the unit. The flow controller will
withstand the momentary applica-
tion of 40 VDC on any wire without
compromising the unit.
Over-Voltage on any Wire (AC)
The flow controller is not designed
to withstand the accidental applica-
tion 110/220 VAC to any wire. Appli-
cation of AC voltage will damage the
unit.
Short Protection
The flow controller will not be
damaged or compromised in any
way if any combination of wires are
shorted together.
From: Power, 24 VDC
To: DeviceNet™ Comm
Isolation
degree: >500 VAC/VDC
ENT48906 10/15/04 8:12 AM Page 7