Siemens 6ES5983-2AB11 Interface Module

Physical Dimensions and Mounting Specifications

The Siemens 6ES5983-2AB11 connects external devices to SIMATIC S5 controllers. This module measures 250mm in height, 25mm in width, and 150mm in depth. You can mount this unit on a standard 35mm DIN rail inside any S5 cabinet. The module weighs 0.34 kilograms , allowing for quick plug-in installation without tools.

Internal Architecture and Component Density

The Siemens 6ES5983-2AB11 contains 104 individual components on its two-layer PCB. Two UART controllers handle serial communication with external devices independently. Four line driver chips convert logic levels to RS-232 voltage levels. Additionally, eight opto-isolators separate communication lines from the internal logic bus.

Energy Storage and Data Buffering

This interface module stores 5.6 joules across four electrolytic capacitors. This energy reserve powers receive buffers for up to 25 milliseconds during power dips. The storage also maintains port configuration while the system recovers from faults. Consequently, the module prevents data loss during brief supply interruptions.

Parameter	Value	Unit
Dimensions (H x W x D)	250 x 25 x 150	mm
Weight	0.34	kg
PCB layer count	2	layers
Total components	104	pieces
UART controllers	2	units
Line driver chips	4	units
Opto-isolators	8	units
Electrolytic capacitors	4	units
Total energy storage	5.6	J
Buffer hold-up time	25	ms
Communication ports	2	ports
Interface type	RS-232 (both ports)	–
Maximum baud rate	9600	bps
Data format	8 data, 1 stop, no parity	–
Cable length (maximum)	15	meters
Operating voltage	5	V DC
Current draw	150	mA
Power dissipation	0.75	W
Isolation voltage	1500	V AC
LED indicators	4	units

Interface and Connectivity Features

The Siemens 6ES5983-2AB11 provides two 9-pin D-sub male connectors for device connections. A single 20-pin IDC header links the module to the S5 backplane. You will also find one 6-pin terminal block for external handshake signals. Each D-sub connector follows standard RS-232 pinout for direct cable compatibility.

Communication Protocol and Features

This module uses standard asynchronous protocol for programming and monitoring functions. You can connect the Siemens 6ES5983-2AB11 to printers, barcode scanners, or host computers. Each port supports XON/XOFF software flow control for reliable data transfer. Furthermore, the module handles full-duplex communication for simultaneous transmit and receive operations.

Diagnostic and Status Indication

Four LED indicators provide immediate feedback for interface and communication status. Green PWR confirms the presence of valid backplane power to the module. Amber TX blinks each time the module transmits data on either port. Red RX blinks for incoming data reception on either communication port.

Programming and System Integration

You can configure the Siemens 6ES5983-2AB11 using STEP 5 software on a programming device. This module supports point-to-point communication with most serial devices. The interface allows data exchange between the S5 controller and external equipment. Furthermore, the module enables remote diagnostics through modem connections up to 15 meters away.

Configuration and Addressing

This interface module requires DIP switch settings for port configuration. You can set the baud rate, data format, and port address using eight switches. Each port operates independently with its own communication parameters and settings. The module maps received data to specific memory locations in the controller’s process image.

Environmental Specifications and Compliance

You can operate this interface module from 0°C to 60°C ambient temperature without derating. Storage temperature ranges from -20°C to 70°C for long-term preservation. Non-condensing humidity tolerance spans 10% to 95% for industrial environments. This module meets DIN 19240 standards for programmable controller interfaces.