Introduction
Status Indicators
Overview | This section describes the status indicators for each model, gives a diagram of the |
| indicators, and explains how to interpret the indicator patterns. |
Indicators |
|
Each model has a front panel indicator showing its network communication status. | |
| The |
| errors on the two cable paths. |
Diagram |
|
The communication status and error indicators are shown in the diagram below |
Modbus Plus |
|
|
|
|
Communication Active |
|
|
|
|
(Green) |
|
|
|
|
(All models) |
| MB+ | ||
|
| |||
|
| ACT | ||
Communication Error | ERROR | |||
Channel A |
|
|
|
|
(Red) |
| A |
| |
(170 PNT 160 20 only) |
| B |
| |
Communication Error | 9 | 0 | 1 | 2 |
|
| |||
8 |
|
| 3 | |
|
|
| ||
Channel B | 7 | 6 | 5 | 4 |
|
| |||
(Red) |
| 0 | 1 |
|
| 9 | 2 | ||
|
|
| ||
(170 PNT 160 20 only) | 8 |
|
| 3 |
|
|
| ||
7 | 6 | 5 | 4 | |
|
|
|
Modbus Plus | The table below describes the status associated with each active indicator pattern. | ||
Active Indicator |
|
| |
Indicator Pattern (Green) | Status | ||
Patterns | |||
|
| ||
Six flashes/second | Normal operating state. All nodes on a healthy | ||
| |||
|
| network flash this pattern. | |
|
|
| |
| One flash/second | The node is | |
|
| seconds, the node attempts to go to its normal | |
|
| operating state. | |
|
|
| |
| Two flashes, then OFF for 2 seconds | The node detects the network token being passed | |
|
| among other nodes, but it never receives the token. | |
|
|
| |
| Three flashes, then OFF for 1.7 | The node does not detect any token passing on the | |
| seconds | network. | |
|
|
| |
| Four flashes, then OFF for 1.4 seconds | The node has detected another node using the | |
|
| same address. | |
|
|
| |
|
|
|
10 | 870 USE 103 00 May 2001 |