Rockwell Automation Allen-Bradley PanelView Plus 7 User Manual

28 Rockwell Automation Publication 2711P-UM008I-EN-P - February 2022
Chapter 2
Required Circuit Port Parameters for USB Peripheral Devices
This product contains USB host ports that comply with hazardous location
environments. Field wiring compliance requirements are provided in
compliance with the National Electrical Code, Article 500.
Figure 1 - PanelView Plus 7 Performance Terminal Control Drawing
PanelView Plus 7 Performance terminals provide two, separately powered USB
host ports. Tab l e 12
defines the circuit parameters of these USB host ports.
Application Information
Per the National Electrical Code, the circuit parameters of associated field-wiring apparatus for use in hazardous
locations shall be coordinated with the host product such that their combination remains nonincendive. PanelView Plus
7 Performance terminals and the USB peripheral devices shall be treated in this manner.
The USB peripheral devices and their associated cabling shall have circuit parameters with the limits given in Ta bl e 12
for them to remain nonincendive when used with the PanelView Plus 7 Performance terminal USB host ports.
If cable capacitance and inductance are not known, use the following values from ANSI/ISA-RP 12.06.01-2003:
C
cable
= 197 pF/m (60 pF/ft)
L
cable
= 0.7 μH/m (0.20 μH/ft)
Nonincendive Field
Wiring Apparatus
Associated Nonincendive Field Wiring Apparatus
PanelView Plus 7 Performance Host Product
USB Peripheral Device
USB Peripheral Device
USB Host Port
USB Host Port
Table 12 - Circuit Parameters for USB Host Ports
Parameter Value Parameter Definition
V
oc (USB)
5.25V DC Open circuit voltage of each host USB port.
The maximum applied voltage rating, V
max (peripheral)
, of each USB peripheral device shall be greater
than or equal to V
oc (USB)
.
V
max (peripheral)
≥ V
oc (USB)
,
(as appropriate)
I
oc (USB)
1.25 A Maximum output current of each host USB port.
The maximum current, I
max (peripheral)
, to which each USB peripheral device can be subjected shall be
greater than or equal to I
oc (USB).
I
max (peripheral)
≥ I
oc (USB)
C
a (USB)
10 μF This value is the maximum total capacitance that can be connected to each USB host port. The total
capacitance of each USB peripheral device and its associated cable must not exceed the indicated
value.
The maximum total capacitance, C
i (peripheral)
, and cable capacitance of each separate USB peripheral
device shall be less that or equal to C
a (USB)
.
C
i (peripheral)
+ C
cable (USB)
≤ C
a (USB)
L
a (USB)
15 μH This value is the maximum total inductance that can be connected to each USB host port. The total
inductance of each USB peripheral device and its associated cable must not exceed the indicated
value.
The maximum total inductance, L
i (peripheral)
, and cable inductance of each separate USB peripheral
device shall be less than or equal to L
a (USB)
.
L
i (peripheral)
+ L
cable
≤ L
a (USB)

Rockwell Automation Allen-Bradley PanelView Plus 7 Specifications

General

Brand	Rockwell Automation
Model	Allen-Bradley PanelView Plus 7
Category	Touch terminals
Language	English