ABB RS232 MSR04XI Serial Communications Module
product overview
ABB MSR04XI Ethernet Communication Module is an Ethernet communication module designed specifically for the industrial automation field, aimed at achieving efficient and stable data exchange between different devices and systems. It provides critical connections for the construction of industrial network architecture, enabling various industrial devices to easily access Ethernet, breaking down communication barriers between devices, and helping to build an interconnected and intelligent industrial environment. Through this module, sensors, controllers, actuators, and other devices on the production line can communicate smoothly, laying a solid foundation for the automation and intelligent control of industrial production.
Specification parameters
Communication interface: Equipped with standard Ethernet interface, supporting 10/100Mbps adaptive transmission rate, able to flexibly adapt to different network environments, ensuring high-speed data transmission.
Electrical characteristics: The working voltage range is 24VDC ± 10%, with low power consumption, ensuring stable operation in industrial environments while reducing enegy loss.
Physical dimensions: Compact in size, easy to install in various industrial control cabinets, does not occupy too much space, and is conducive to optimizing industrial equipment layout.
Working temperature: It can work stably within a wide temperature range of -25 ℃ to+70 ℃, adapting to the temperature conditions of different industrial scenarios. Whether it is a cold outdoor working environment or a high-temperature industrial production workshop, it can operate reliably.
Core functions
Data transmission: Efficient transmission of industrial data, supporting multiple industrial protocols such as Modbus TCP, PROFINET, etc., can quickly and accurately transmit various control instructions, status information, and production data between devices and systems, achieving precise control and real-time monitoring.
Protocol conversion: It can convert various communication protocols used by different devices into Ethernet compatible protocols, enabling devices that are originally incompatible with communication protocols to be interconnected through Ethernet, greatly improving the compatibility and integration of industrial networks.
Network Management: Supports Simple Network Management Protocol (SNMP) for remote monitoring and management of modules in the network. It can obtain real-time information on module working status, traffic, etc., discover and solve potential problems in a timely manner, and ensure stable network operation.
PURPOSE
The Serial Communications Module provides a serial interface between the SC300E environment and a variety of remote devices complying with the standard RS232-C. At least one Serial Communications Module must be used in the system and fitted in Slot 10 of the main chassis to enable communications between the system processors and the workstations.
The workstation link is used for loading the application software and monitoring ladder and diagnostic functions. The link utilises Port 0 of the module. Additional modules can be fitted to any other I/O slot, ‘wrong slotting’ is prevented by mechanical coding blocks (Figure 2-1 ). The system software identifies the module via a built-in hardware identifier.
Circuit triplication and voting procedures make the module single fault tolerant and front panel
indicators show Tx/Rx activity, the circuit on-line status and the health of the module.
Communications connections are via four identical ports on the front panel (Ports 0 to 3) and these connections are duplicated on the field connector (J2) at the rear.
A fifth port is for diagnosticpurposes only.
The module is compatible with ‘single slot hot repair’ and the front panel has a switch to enable a request that the module be taken off line.
This document is intended to provide a general understanding of the function of Serial
Communications Module, sufficient to enable basic maintenance operations to be effected in the field.
TECHNICAL DESCRIPTION
PHYSICAL
The Serial Communications Module is a 9U high PCB with integral front panel and front and rear connectors; a plug-in daughter board carries the RS232 interface circuits. Figure 1-1shows the general layout, location of the connectors and front panel components.
Mechanical coding blocks
All Input/Output modules carry two mechanical coding blocks equipped with pins which mate with holes in corresponding blocks in the chassis and prevent the module being inserted into the wrong slot. The pins in the module blocks are factory installed in a pattern determined by the module and corresponding set screws are removed from the chassis coding blocks to enable fitting. Unused holes are plugged with set screws.
Links
The PCB has a total of nine links. For the top section of the PCB the links are located and configured as follows:
Three LK1 links (3-pin) located approximately 80mm down from the top of the module, not user configurable, link not fitted.
Three LK2 links (8-pin) located approximately 210mm down from the top of the module Module ID links which should always be fitted
Triguard SC300E
On the lower section of the PCB are three further links, LK2, LK3 and LK4, located and configured as follows:
LK2 (2-pin) located approximately 220mm down from the top of the module and 110mm in from the front face, used in the voltage monitoring circuit, always fitted.
LK3 (3 -pin) located beneath the plug in daughterboard. Used for 3-2-1-or 3-2-0operation,factory fitted hard wired, all pins linked for 3-2-1 mode.
LK4 (3-pin) located approximately 250mm down from the top of the module and 220mm from the front face, used for the daughterboard clock speed setting, pins 1 and 2 linked.
