Momentum Sales & Marketing 170 PNT Series manual Status Indicators, Modbus Plus, Active Indicator

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 dual-cable model has two additional indicators which identify communication
	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 off-line. After being in this state for 5
		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