Brand:Siemens Item No.:6AG1688-3AF37-2AX0 Product Origin: Germany Product Dimensions:18 × 10.5 × 6.2 cm Product Weight:0.368 kg Payment:T/T, Western Union, Credit Card Goods_stock:15 Shipping Port:Xiamen, China Lead Time:1-3 Days Condition:Brand New And Original Warranty:1 Year Certificate:COO
The Siemens 6AG1688-3AF37-2AX0 is a SIPLUS HMI KP8F PN key panel based on 6AV3688-3AF37-0AX0. It combines operator-control keys, multi-colored LED indicators, PROFINET communication, configurable digital I/O, and PROFIsafe functionality in a compact industrial panel.
The unit features 8 short-stroke keys, 8 function keys, 8 direct keys, and 8 adjustable-brightness direct LEDs. Two PROFINET interfaces with an integrated switch support network integration, while the 24 V DC supply can be looped through the connector. The conformal-coated SIPLUS construction is intended for demanding industrial operating environments.
Technical Specifications
Parameter
Specification
Brand
Siemens
Order Number
6AG1688-3AF37-2AX0
Product Type
SIPLUS HMI KP8F PN Key Panel
Base Model
6AV3688-3AF37-0AX0
Function Keys
8
Short-Stroke Keys
8
Direct Keys
8
Direct LEDs
8
LED Colors
Red, green, blue, yellow, white
PROFINET Interfaces
2, with integrated switch
PROFIsafe
Yes
Digital Inputs
Up to 8
Digital Outputs
Up to 8
Rated Supply Voltage
24 V DC
Permissible Supply Range
20.4 to 28.8 V DC
Rated Current Consumption
0.3 A
Front Protection
IP65
Rear Protection
IP20
Operating Temperature
-20 °C to +55 °C
Mounting
Front mounting with mounting clip
Mounting Orientation
Portrait or landscape
Conformal Coating
Yes
Dimensions
Approx. 18 × 10.5 × 6.2 cm, packaging dimensions published by Siemens
Net Weight
Approx. 0.368 kg
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Where It Fits in Industrial Applications
• Designed for industrial operator control and monitoring applications using Siemens SIMATIC HMI systems.
• 6AG1688-3AF37-2AX0 is a SIPLUS HMI KP8F PN key panel based on 6AV3688-3AF37-0AX0.
• The panel provides PROFINET communication with PROFIsafe support for safety-related applications.
• The conformal-coated SIPLUS design is intended for demanding industrial environments requiring enhanced protection of internal electronics.
Key Strengths at a Glance
• Provides 8 short-stroke keys with multi-colored LED indication for direct operator control and status visualization.
• Includes 8 function keys and 8 direct keys for configurable machine-control functions.
• Provides two PROFINET interfaces with an integrated switch for network connection.
• Supports PROFIsafe communication and configurable digital I/O for fail-safe operator applications.
• Operates from a nominal 24 V DC supply, with the supply capable of being looped through the connector.
Technical FAQs
1. What is Siemens 6AG1688-3AF37-2AX0?
6AG1688-3AF37-2AX0 is a Siemens SIPLUS HMI KP8F PN key panel with conformal coating, based on 6AV3688-3AF37-0AX0.
2. How many short-stroke keys does the KP8F PN provide?
The panel provides 8 short-stroke keys for operator control.
3. How many function keys are available?
The KP8F PN provides 8 function keys that can be parameterized for machine and process-control functions.
4. Does 6AG1688-3AF37-2AX0 support PROFIsafe?
Yes. The KP8F PN supports PROFIsafe for safety-related communication and compatible fail-safe applications.
5. How many PROFINET interfaces does the panel have?
The panel provides 2 PROFINET interfaces with an integrated switch, allowing suitable network line or ring configurations.
6. What supply voltage does the Siemens KP8F PN use?
The rated supply voltage is 24 V DC, with a permissible operating range of 20.4 to 28.8 V DC.
7. What digital I/O is provided?
The device provides up to 8 digital inputs and 8 digital outputs, with the total configurable I/O arrangement subject to the applicable safety and device configuration.
8. What LED functions are available?
The 8 direct LEDs provide adjustable brightness and support multiple colors, including red, green, blue, yellow, and white.
9. What environmental protection does the SIPLUS version provide?
The device uses conformal coating to provide additional protection for the electronics in demanding environments. The specified operating temperature range is -20 °C to +55 °C.
10. What should be verified before replacing this HMI panel?
The Siemens order number, base model, PROFINET configuration, PROFIsafe requirements, supply voltage, and existing STEP 7 configuration should be verified before replacement.
