Siemens 6ES5635-0UA11 Programming Terminal

This device connects to S5 CPUs for code upload, download, and debugging. The Siemens 6ES5635-0UA11 provides a portable programming solution for field technicians. It measures 280 mm in width and 210 mm in height. This unit weighs approximately 2.2 kg for easy transport between machines.

Technical Specifications Table

Parameter	Value
Product Model	Siemens 6ES5635-0UA11
Category	Programming Terminal / Field Programmer
Display Type	Monochrome LCD with backlight
Display Resolution	6 lines x 40 characters
Keyboard	52 full-travel keys (QWERTY layout)
Communication Ports	1 x RS232, 1 x TTY (20 mA current loop)
Storage Media	2 x built-in EPROM sockets
Dimensions (W x H x D)	280 mm x 210 mm x 55 mm
Weight	2.2 kg
Internal Components	1 x 8-bit CPU, 2 x RAM chips, 1 x battery
User Memory	32 KB RAM for program storage
Backup Memory	16 KB EPROM (user-programmable)
Energy Storage	1 x 3.6 V lithium battery for RAM retention
Operating Voltage	24 V DC external supply or internal rechargeable
Battery Life	8 hours on internal battery, 2 years for RAM backup

Internal Design and Field Programming Features

This programming terminal uses an 8-bit CPU dedicated to STEP 5 operations. A 6-line LCD screen shows ladder logic and statement lists clearly. The Siemens 6ES5635-0UA11 includes two EPROM sockets for permanent program storage. You can copy programs from RAM to EPROM for long-term archiving. The terminal supports online monitoring of timers, counters, and I/O status. A built-in rechargeable battery allows untethered operation for up to 8 hours.

Connection and Usage Guide

First, connect the terminal to your S5 CPU using the TTY or RS232 cable. Next, power on both the PLC and the programming terminal. Then, select the communication protocol matching your CPU model (9600 baud default). Use the QWERTY keyboard to enter ladder logic or statement list programs. Monitor real-time values by placing the cursor on any address. You can download entire programs to EPROM using the onboard socket programmer. This terminal works with all SIMATIC S5 CPUs including 100U, 115U, 135U, and 155U models. Always save your work to EPROM before powering down the terminal.