APC 6000 user manual Presentation, Introduction, ACQ module, COM module

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Presentation

Introduction

The "GTC link" communication interface is designed to transmit MGETM GalaxyTM 6000 UPS operating information and remote "on/off" commands (if available) to an external computer.

The JBUS hexadecimal communication protocol is used (the JBUS ASCII mode is not used in this application).

The "GTC link" features two symmetrical communication channels, both with a simplified V24 (RXD and TXD only) and an RS485 interface.

It consists of a "GTCZ" communication board (central unit) and a "RAUZ 1" (communication network management and interconnection board).

In option, two additional communication ports can be added: "GT2Z" board (central unit) and "RAUZ 2" board (communication network management and interconnection board).

Refer to the "communication options connection manual" of MGETM GalaxyTM 6000 nr 6739388XU, for all informations about connections.

"GTCZ" and "GT2Z" boards features

The "GTCZ" and "GT2Z" boards are functionally divided into two main modules:

The ACQ module

performs data acquisition;

monitors the status bus of the monitor/control boards;

computes physical quantities and battery backup time;

processes alarms;

sends commands to monitor/ control boards;

stores configurable parameters and communicates with the "Soft Tunor" software, used by APC by Schneider Electric after-sales service;

transfers data using the on-board communication channels.

The COM module

The COM communication module is designed for external devices (e.g. "AMUZ" type board of a "Monitor" or "Tele-Monitor") to:

retrieve information and parameters processed by the ACQ;

send commands to monitor/ control boards;

be integrated into other systems (remote indications and supervision).

Each "GTCZ" or "GT2Z" board is equipped with two symmetrical communication ports, COM1 and COM2:

on the "GTCZ" board:

COM1 for a "display devices" network consisting of "AMUZ" boards in a unitary or parallel connected UPS configurations,

COM2 for a supervisory system;

on the "GT2Z" board:

COM1 and COM2 for a supervisory system.

The "GTCZ" and "GT2Z" boards are configured with the APC by Schneider Electric after-sales customization software called "Soft Tunor".

The computer link is via the test connector located on the front panel of the cubicles and performs:

configuration, calibration and control of the ACQ module;

configuration of COM1 and COM2 ports.

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Contents Mgetm GalaxyTM GTC link communication interface2 6739389EN/FB Contents Presentation IntroductionACQ module COM moduleCommunication settings InterfaceJbus protocol Synchronizing data exchanges PrincipleDescription of request and response frames Checking received messages on the slave side Functions Function 1 and 2 read N bitsFunction 3 and 4 read N words Function 5 writing a bitFunction 8 reading error diagnosis counters Function 6 writing a wordFunction 11 reading event counters Function 15 writing n consecutive bitsFunction 16 writing n consecutive words MSB LSB MSB LSB MSBCRC 16 algorithm Example of CRC computation Example of CRC 16 computation in C using table lookup Table of Most Significant Bytes for CRC16 ComputationJbus protocol UPS theory of operation Unitary UPSOperation without battery Parallel connected UPS with Static Switch cubicleUPS without Mains Operation with battery Unitary UPS Block diagramMeasured quantities Main status bits UPS operating information Normal operation Load on batteryOperating modes Load on Mains Load on bypass Parallel connected UPS Normal operation Load on battery Disconnected Main status bits of system operationsStatic Switch cubicle Main indicators of system operations Static SwitchNormal operation Load on Mains Load on bypass Example of read data array commands sent by the terminal Sample commands List of variable fieldsSystem information Message formatTables of measured data General definitions Signaling fieldCurrent fields Power fields Frequency fields Voltage fieldsTables of binary data Battery and adjustments fieldsRectifier-charger Inverter ConnectivityTable of control devices Global informationGlossary of information descriptors Word addressInverter stack overload 0=no/1=overload Word address 4A Word address 4CWord address 4D Word address 4E summaryC10 call reset 0= not activated / 1=activated Word address C1
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