Siemens SIMATIC S5 PG631 - Computer (1) - Without original box





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Siemens SIMATIC S5 PG631 programming unit, a single vintage industrial PLC programming terminal from 1990, in good used condition and untested, sold without the original box.
Description from the seller
Offered for auction is an original Siemens SIMATIC S5 PG631 programming unit, a vintage industrial programming terminal developed for the Siemens SIMATIC S5 family of programmable logic controllers.
This substantial piece of industrial computing equipment represents an important period in the development of factory automation, when dedicated programming terminals were used for commissioning, programming, diagnostics and maintaining industrial control systems.
The PG631 features an integrated CRT monitor, a specialised programming keyboard and a robust, portable industrial enclosure.
Today, equipment of this type is of interest to industrial automation specialists, vintage computer collectors and enthusiasts of early programmable logic controller technology.
Technical Details
Manufacturer: Siemens
Product family: SIMATIC S5
Model: PG631
Type: Industrial PLC programming unit
Display: Integrated CRT monitor
Keyboard: Built-in programming keyboard with dedicated function keys and numeric keypad
Application: Programming, diagnostics and maintenance of compatible Siemens SIMATIC S5 PLC systems
Construction: Heavy-duty portable industrial enclosure
Connectivity: Interfaces intended for compatible industrial programming equipment
Era: Vintage industrial automation equipment
Features
Integrated CRT display for programming and diagnostic information
Dedicated SIMATIC S5 programming keyboard
Function keys for entering and editing control programs
Numeric keypad for data entry
Portable industrial construction with carrying handle
Integrated ventilation
Designed for industrial maintenance and commissioning environments
Condition
The programming unit is in used, untested condition.
It shows visible signs of previous industrial use and age, including scratches, surface marks, discolouration, dirt and general cosmetic wear.
The exterior casing and keyboard appear substantially complete, although there are visible signs of wear around the housing and edges.
No power-up or operational testing has been performed.
The condition of the CRT monitor, internal electronics, keyboard functionality and communication interfaces is unknown.
The unit is therefore offered as-is, for restoration, spare parts, repair or collection.
No guarantee of functionality is provided.
Please examine all photographs carefully, as they form an important part of the description.
Historical and Collector Interest
The Siemens SIMATIC S5 series played an important role in the development of industrial automation throughout the 1980s and 1990s.
Before modern PC-based programming software became widespread, dedicated programming units such as the PG631 provided technicians and engineers with a practical way to work directly with industrial control systems.
These machines are now interesting examples of early industrial computing technology.
Potential applications and areas of interest include:
Vintage industrial computer collections
Siemens SIMATIC S5 equipment restoration
Industrial automation history
Technical museums and engineering collections
Spare parts for legacy equipment
Vintage technology displays and exhibitions
Included in the Auction
1 × Siemens SIMATIC S5 PG631 programming unit.
The auction includes only the equipment shown in the photographs.
No additional cables, software, manuals or accessories are included.
Important Information
This is older industrial electronic equipment that has not been electrically tested.
Buyers intending to operate the unit should have it inspected by a qualified technician before connecting it to a power supply.
Compatibility with a specific Siemens SIMATIC S5 PLC system should be verified before purchase.
The item will be carefully packed for transportation, with particular attention to protecting the CRT display and housing.
Offered for auction is an original Siemens SIMATIC S5 PG631 programming unit, a vintage industrial programming terminal developed for the Siemens SIMATIC S5 family of programmable logic controllers.
This substantial piece of industrial computing equipment represents an important period in the development of factory automation, when dedicated programming terminals were used for commissioning, programming, diagnostics and maintaining industrial control systems.
The PG631 features an integrated CRT monitor, a specialised programming keyboard and a robust, portable industrial enclosure.
Today, equipment of this type is of interest to industrial automation specialists, vintage computer collectors and enthusiasts of early programmable logic controller technology.
Technical Details
Manufacturer: Siemens
Product family: SIMATIC S5
Model: PG631
Type: Industrial PLC programming unit
Display: Integrated CRT monitor
Keyboard: Built-in programming keyboard with dedicated function keys and numeric keypad
Application: Programming, diagnostics and maintenance of compatible Siemens SIMATIC S5 PLC systems
Construction: Heavy-duty portable industrial enclosure
Connectivity: Interfaces intended for compatible industrial programming equipment
Era: Vintage industrial automation equipment
Features
Integrated CRT display for programming and diagnostic information
Dedicated SIMATIC S5 programming keyboard
Function keys for entering and editing control programs
Numeric keypad for data entry
Portable industrial construction with carrying handle
Integrated ventilation
Designed for industrial maintenance and commissioning environments
Condition
The programming unit is in used, untested condition.
It shows visible signs of previous industrial use and age, including scratches, surface marks, discolouration, dirt and general cosmetic wear.
The exterior casing and keyboard appear substantially complete, although there are visible signs of wear around the housing and edges.
No power-up or operational testing has been performed.
The condition of the CRT monitor, internal electronics, keyboard functionality and communication interfaces is unknown.
The unit is therefore offered as-is, for restoration, spare parts, repair or collection.
No guarantee of functionality is provided.
Please examine all photographs carefully, as they form an important part of the description.
Historical and Collector Interest
The Siemens SIMATIC S5 series played an important role in the development of industrial automation throughout the 1980s and 1990s.
Before modern PC-based programming software became widespread, dedicated programming units such as the PG631 provided technicians and engineers with a practical way to work directly with industrial control systems.
These machines are now interesting examples of early industrial computing technology.
Potential applications and areas of interest include:
Vintage industrial computer collections
Siemens SIMATIC S5 equipment restoration
Industrial automation history
Technical museums and engineering collections
Spare parts for legacy equipment
Vintage technology displays and exhibitions
Included in the Auction
1 × Siemens SIMATIC S5 PG631 programming unit.
The auction includes only the equipment shown in the photographs.
No additional cables, software, manuals or accessories are included.
Important Information
This is older industrial electronic equipment that has not been electrically tested.
Buyers intending to operate the unit should have it inspected by a qualified technician before connecting it to a power supply.
Compatibility with a specific Siemens SIMATIC S5 PLC system should be verified before purchase.
The item will be carefully packed for transportation, with particular attention to protecting the CRT display and housing.

