De-multiplexed Display Driver. Revision 02. User Manual. TM117-DMX Motherboard Daughterboard

Transcription

1 Triguard SC300E TM117-DMX 64 Channel De-multiplexed Display Driver Revision User Manual This manual covers the following items: Model Ref Part No for standard item. TM117-DMX Motherboard Daughterboard

2 Use of DANGER, WARNING, CAUTION, and NOTE This publication includes, DANGER, WARNING, CAUTION, and NOTE information where appropriate to point out safety related or other important information. DANGER WARNING CAUTION NOTE Hazards which could result in severe personal injury or death Hazards which could result in personal injury Hazards which could result in equipment or property damage Alerts user to pertinent facts and conditions Although DANGER and WARNING hazards are related to personal injury, and CAUTION hazards are associated with equipment or property damage, it should be understood that operation of damaged equipment could, under certain operational conditions, result in degraded process performance leading to personal injury or death. Therefore, comply fully with all DANGER, WARNING, and CAUTION notices. All trade references are duly acknowledged. TRADEMARKS

3 Table of Contents TABLE OF CONTENTS Chapter 1 - Introduction and technical data 1.1 Purpose Specification Environmental specifications Associated documentation Transport and handling Chapter 2 - Technical description 2.1 Physical Ancillary circuits Theory of operation Serial interface Format of serial data Watchdog Chapter 3 - Servicing 3.1 Equipment required Diagnosis Removal and replacement Configuration options Connections Connections to MSR04X1 4-port SIO Connections to a second or multiple DMX modules Preventive maintenance Chapter 4 - Service support 4.1 Spare parts Chapter 5 - Glossary of terms 5.1 Glossary of terms iii

4 Table of Contents iv

5 Section 1.1 Purpose Chapter 1 Introduction and technical data 1.1 Purpose The TM117-DMX is designed for use as a multi-channel display driver. The module has the capability of driving 64 display elements from a single communications interface. It s design incorporates a dual redundant configuration to ensure high availability. The input interface of the TM117-DMX is a dual serial communications link, driven from the MSR04X1 serial I/O card. The TM117-DMX modules are typically used to drive LED indicators on control room operator monitor panels. 1.2 Specification Model TM117-DMX Serial interface RS423 /422 Display drivers Watchdog outputs 64 open collector, 50mA per output, the total output current must not exceed On board LED and volt free changeover contacts Wiring connections Serial data: 9 pin D-type connectors (2 male, 2 female) All other: Screw terminal Power requirements (2 daughterboards) Comms cable Sync cable Overall size (mm) Weight 9.6W 18Vdc to 32Vdc 2-core twisted pair, maximum length 1km Miniature coaxial screened cable, wire ended (4Hz signal) 425L x 153W x 45D including daughterboards, mounting clearances and pillars 0.71kg

6 Chapter 1 Introduction and technical data 1.3 Environmental specifications The maximum ambient temperature measured at the hottest point within the Triguard system shall not be greater than 60 degrees centigrade. Temperature operating: +5 C to 60 C Temperature storage: -25 C to +70 C Humidity 5% to 95% non-condensing at ambient <40 C EMC/RFI Immunity Tested and certified to IEC 1131-Part Vibration/Shock Tested and certified to IEC 1131-Part Certification: General Certification: Ref. SC300E Product Guide 1.4 Associated documentation Reference No Title User Manual for Serial Communications Interface (MRS04X1) SC300E TMR Product Guide 1.5 Transport and handling The TM117-DMX must be transported and stored in its original packing material which should be retained for this purpose.

7 Section 2.1 Physical Chapter 2 Technical description 2.1 Physical The TM1117-DMX module consists of a motherboard and a pair of DMX daughterboards, each daughterboard fits onto the motherboard via two 40-pin headers CAUTION The daughter boards are symmetrical but must only be fitted in one orientation onto the motherboard. The correct orientation is with the heat sink at the opposite side to the motherboard connector blocks. (See Figure 2-2. ). The TM117-DMX daughterboard consists of an RS423 receiver/driver, control logic and 64 open collector drivers. All field connections including communications input signals, output drive signals and power supply requirements are terminated on the motherboard. M3 6 OFF PL7 6.0 Motherboard ALL DIMENSIONS IN MM 5.0 Figure 2-1. TM117-DMX mounting details

8 Chapter 2 Technical description (PL5) Watchdog Outputs and Sync Bus (PL6) Power Supply Input Serial Data Communications SW1 SW2 Outputs to Display PL1 PL2 PL3 PL4 PL7 Daughterboard Daughterboard A B Heatsink Heatsink Figure 2-2. TM117-DMX physical layout Ancillary circuits 2.2 Theory of operation Serial interface There are two types of connection made to the DMX panel: 1. Field output connections, panel power requirements (+24V) and control logic signals to the motherboard are through screw type terminals. 2. Data communication to the panel is via 9-pin D-type connectors. The module is driven from the MSR04X1 serial communications (SIO) module using a dumb protocol. The information sent from the SIO module contains a device address and data containing the output conditions for that device. The message is read by each of the modules on the multidrop loop but is accepted only by those modules whose address is valid for that message. When a device recognises its address, its communication watchdog circuit is updated. A synchronisation signal is provided for the flash oscillator so that all TM117-DMX modules driving a single display will flash together. In normal use, TM117-DMX modules are fitted in pairs to a single motherboard. Both modules drive the same 64 outputs but