Watlow ez-zone pm - Page 53

Watlow EZ-ZONE
®
PMI Controller • 49 • Chapter 2 Install and Wire
Link Status
Indicator State Summary Requirement
Steady Off
Not powered,
unknown link
speed
If the device cannot determine link speed or power is off,
the network status indicator shall be steady off.
Green - - - -
If cable is wired and connected correctly, the LED will be
Green.
DeviceNet™ Communications
CAN_L
V-
V+
CH
SH
CL
V-
T2
S2
R2
Slot B, E
V+
CAN_H
shield
Terminal Signal Function
V+ V+ DeviceNet™ power
CH CAN_H positive side of DeviceNet™ bus
SH shield shield interconnect
CL CAN_L negative side of DeviceNet™ bus
V- V- DeviceNet™ power return
• Communications instance 2
Slot B (PM [6] _ _ _ _ _ - [5] _ _ _ _ _ _ )
Slot E (PM [4,8,9] _ _ _ _ _ - [5] _ _ _ _ _ _ )
DeviceNet LED Indicators
Viewing the control from the front and then looking on top two LEDs can be seen aligned
vertically front to back. The LED closest to the front is identied as the network (Net) LED
where the one next to it would be identied as the module (Mod) LED.
Network Status
Indicator LED Description
Off
The device is not online and has not complet-
ed the duplicate MAC ID test yet. The device
may not be powered.
Green
The device is online and has connections in
the established state (allcated to a Master).
Red
Failed communication device. The device has
detected an error that has rendered it inca-
pable of communicating on the network (du-
plicate MAC ID or Bus-off).
Flashing
Green
The device is online, but no connection has
been allocated or an explicit connection has
timed out.
Flashing Red A poll connection has timed out.
Network Status
Module Status