INFICON BCG450-SD ATM to Ultra-High Vacuum Triple Gauge (DeviceNet) - Manual (Page 7)

tira40e1 (2005-04) BCG450SDv1.cp
7
The network status LED indicates the status of the DeviceNet communication link.
State LED state To indicate
Not Powered/not online dark Device is not online.
• The device has not completed the
Duplicate MAC_ID test yet.
• The device may not be powered,
look at Module Status LED.
Online, not connected flashing
green
Device is online but has no connections
in the established state.
• The device has passed the
Dup_MAC_ID test, is online, but
has no established connections to
other nodes.
• The device is not allocated to a
master.
Link OK online, connected green The device is online and has connec-
tions in the established state.
• The device is allocated to a master.
Connection time out flashing
red
One or more I/O Connections are in the
timed out state.
Critical link failure red Failed communication device. The
device has detected an error that has
rendered it incapable of communicating
on the network (Duplicate MAC ID, or
Bus–off).
During device initialization, the node address switches are read by the device firm-
ware. If the switches specify a valid DeviceNet MAC ID, i.e. a value from 0 … 63,
this value is used as the device MAC ID. If the specified MAC ID differs from the
value stored in the device’s non-volatile RAM (NVRAM), the new MAC ID will be
saved in NVRAM. If the switches specify an invalid DeviceNet MAC ID, i.e. a value
greater than 63, the current value stored in the device’s NVRAM is used as the
device MAC ID.
A single, rotary switch is provided for configuring the data rate of the device. The
switch has three valid positions for the DeviceNet data rates, 125, 250, and
500 kBaud, where:
1
125 kBaud
2
250 kBaud
5
500 kBaud
All remaining switch positions specify software selection of the data rate.
The device has two setpoint relays
1)
(Setpoint A and Setpoint B). The setpoints of
these relays are adjustable only by two potentiometers (marked SETPOINT A and
SETPOINT B).
The relay contacts are available at the 15-pin D-Sub connector.
1)
Type of setpoint function assigned to relays is programmable (
→ 26).
1.5.2 Network Status LED
1.5.3 Node Address Switch
1.5.4 Data Rate Switch
1.5.5 Setpoint