Table of Contents
Advertisement
Advertisement
Table of Contents
Related Manuals for Siemens COM32
Summary of Contents for Siemens COM32
- Page 1 COM32 Installation & Operation Manual...
- Page 2 Wisdom, and WinPM are trademark, Sensitrip and Sentron are registered trademarks of Siemens Energy & Automation, Inc. SIEMENS is a registered trademark and Windows is a trademark of Microsoft Corporation. All other product names mentioned herein are used for identification purposes only and may be the trademarks or...
-
Page 3: Table Of Contents
1 COM32 Features ........ - Page 4 Siemens maintains control of all specifications for the SEAbus and SEAbus Plus protocols. A modification to a protocol for any type of device must be approved by Siemens Energy & Automation, Inc. to guarantee compatibility. Any changes made must be backward compatible so that existing products can coexist on the communications bus...
-
Page 5: Com32 Features
RS-232 device and an RS-485 device, there must be some method of controlling whether the RS-232 device listens or transmits onto the bus. The COM32 provides two ways of doing this. The first is the standard approach of using the RS-232 RTS signal to provide directional control for the COM32 module. - Page 6 COM32 Features The operational block diagram for the COM32 is provided in Figure 1.1.1. Figure 1.1.2 shows the physical features of the COM32. Figure 1.1.1 COM32 Operational Block Diagram Figure 1.1.2 COM32 Features COM32 INSTALLATION & OPERATION MANUAL...
-
Page 7: Installation And Operation
PC, which will be DTE (data terminal equipment). As shown in Figure 2.1.1, the DB-23 connector on the COM32 unit is connected directly (wires run straight through and do not cross) to the DB-23 connector of the computer. - Page 8 RS-485 connections to the “Data +” and “Data -” terminals of the COM32. Ensure that the polarity is correct. If the converter is being used to allow the modem to monitor an active RS-485 data loop, the converter must be set to pass data to the modem only after the carrier has been detected, otherwise the modem will not answer.
-
Page 9: Rs-485 Connections
The overall length of the RS-485 cable connecting all devices cannot exceed 4000 ft. (1219 m). A COM32 is required in order to connect an RS-485 communications bus to a computer or other RS-232 equipped device. -
Page 10: Loop Topology
Consult the cable manufacturer’s documentation for the exact impedance of your cable. Loop Topology The loop wiring method is illustrated in Figure 2.3a. The COM32 can exist at any position on the RS-485 bus. One advantage of the loop topology is that a single-open circuit fault condition anywhere on the loop will not result in the loss of communication between the computer station and any of the remote devices. - Page 11 RS-232C to RS-485 Converter SHLD RS-485 Cable AWG 22 shielded twisted pair. Overall length: 4000 ft. maximum. Computer or Modem RS-485 PORT RS-485 PORT RS-485 PORT SHLD SHLD SHLD Figure 2.3a RS-485 Straight-Line and Loop Topologies COM32 INSTALLATION & OPERATION MANUAL...
- Page 12 SHLD SHLD RS-485 T-CONNECTION RS-485 PORT RS-485 PORT RS-485 PORT SHLD SHLD SHLD SHLD COM32 RS-232C to RS-485 Converter SHLD Computer DO NOT or Modem CONNECT RS-485 PORT SHLD Figure 2.3b RS-485 Topologies to Avoid COM32 INSTALLATION & OPERATION MANUAL...
-
Page 13: Power Connections
7VDC and 12VDC. It is recommended that a power supply adapter with an output of 9VDEC at 500mA be used. The COM32 with this option is supplied with a pair of leads with spade connector terminations which extend form the side of the enclosure (see Figure 3.1.1). -
Page 14: Standards Compliance
The UNI option is CSA, UL, and VDE approved. -IND Option The -IND option is a universal power supply that allows the COM32 to be powered from any standard international voltage and frequency. The power supply is designed for industrial applications where it can be mounted on the wall or door of a cabinet. - Page 15 Power Connections Figure 3.1.2 -UNI Option (Universal P/S) Figure 3.1.3 Connecting the -IND Power Supply COM32 INSTALLATION & OPERATION MANUAL...
- Page 16 Power Connections Figure 3.1.4 -IND Option (Industrial P/S) COM32 INSTALLATION & OPERATION MANUAL...
-
Page 17: Technical Specifications
Shipping Weight: COM32: 0.24 kg; 8 oz. COM32 with standard power supply: 0.47 kg; 1lb. COM32 with alternate power supply: 0.63 kg; 1 lb. 6 oz. Shipping Carton: 30 cm x 25 cm x 15 cm (11.8” x 9.8” x 5.9”) - Page 18 Technical Specifications Figure 4.1.1 COM32 Mechanical Dimensions COM32 INSTALLATION & OPERATION MANUAL...
- Page 20 Windows is a trademark and Microsoft is a registered Order No. XXOM-104-0101 PDF 0101Printed in the U.S.A. trademark of Microsoft Corporation. Siemens is a registered trademark of Siemens AG. All others are of Siemens AG. Specifications are subject to change without notice.