The GKONE Digital Panel Meter is a high-precision device for reliable power consumption measurement in industrial and commercial systems. With 1.0 accuracy class and compliance with IEC 62052-11/62053-21 standards, it precisely monitors key electrical parameters, featuring a clear LED display, compact 1/8 DIN design for easy 35mm guide rail installation, and support for multiple wiring modes. Equipped with RS-485/Modbus-RTU, IP20 protection and -25°C to 55°C operating range, it ensures stable performance. CE, ROHS, ISO certified by trusted brand GKONE, it's ideal for diverse scenarios as a cost-effective energy management solution.



Henan 4.0 Automation Equipment Co., Ltd., established in 2015, emerges as a lighthouse of innovation with nearly two decades of distinguished industry acumen. This cutting-edge enterprise artfully weaves together research, development, production, sales, and service, offering exceptional industrial automation system products. Operating under its prestigious brand, GKONE, the company crafts personalized automation solutions, elevating industry standards to unprecedented heights.
The company proudly upholds ISO9001, ISO14001, and ISO45001 certifications, reflecting its unwavering dedication to quality, environmental stewardship, and occupational safety. As a respected member of the PROFINET Association (PI China) and EtherCAT Technology Association, Henan 4.0 is also honored as a national high-tech enterprise. With an impressive portfolio of over 30 patents, our products adhere to rigorous international standards, boasting TUV, UL, CE, ROHS, 3C, EAC, and UKCA certifications, which affirm their superior quality and global compliance.
Our extensive array of products encompasses state-of-the-art PLCs, durable IO systems, high-efficiency frequency converters, and sophisticated cabinet environmental control systems tailored for cooling and heating. We also provide top-tier cabinet accessories, including lighting and wiring solutions, along with expertly designed customized complete cabinets. Furthermore, as proud distributors of the extensive SIEMENS automation product line, we deliver unmatched value and efficiency to our esteemed clientele.

PCB Production
Assembly workshop
Packaging workshop
Quality Inspection
Our rigorous quality inspection process ensures unparalleled excellence throughout our production line. This comprehensive system integrates meticulous visual inspections, precise computer-assisted testing, and thorough anti-aging evaluations. Our diligent approach guarantees the reliability and durability of every product, delivering impeccable quality that delights our valued customers.

1.Does GKONE PROFINET distributed IO support 200SMART?
The new 200SMART supports PROFINET communication, and if the PLC version is below version 2.3 and needs to be upgraded, PROFINET can be supported after the upgrade. At the same time, S7 programming software also needs 2.4 or more.
2.What is the maximum number of GKONE PROFINET distributed IO that Siemens PLC can carry?
In addition to Siemens PLC's own sub-station modules, the 200SMART can support 8 PROFINET distributed IO modules, the Siemens 1200 can support 16 PROFINET distributed IO modules, and the Siemens 1500 can support 128 PROFINET distributed IO modules.
3.Each GKONE PROFINET distributed IO module has two PN ports. Can it be cascaded?
Yes, these two ports are small switches.
4.What is the resolution of the GKONE PROFINET distributed IO module analog?
The analog resolution is one thousandth, and the actual measurement is between five and one thousandth.
5.How much current does the GKONE PROFINET Distributed IO module digital output support?
Digital output is divided into relays and transistors, relays support 2A operating current, transistors 0.5A.
6.Is GKONE PROFINET Distributed IO module digital volume isolated?
The digital output has optocoupler isolation.
7.Is the GKONE PROFINET distributed IO module stable to use?
GKONE PROFINET distributed IO module has been widely used in various industrial applications, thousands of projects stable operation.
8.What is the difference between the GKONE PROFINET distributed IO module and the ET200?
GKONE PROFINET distributed IO module is a blade type modular module, supporting digital analog temperature, etc., can be independent as a PN slave station, without the need for base terminals, can replace ET200.
9.In addition to Siemens PLC, does the GKONE PROFINET distributed IO module support other controllers?
As long as it can do PROFINET master controller, it is compatible, and can also support controllers with EtherCAT master function.
10.What is the range of analog quantity and temperature?
Current signal 0-20MA, 4-20MA range is 0-27648; Voltage signal 0-10V range is 0-27648
The data collected by the PT100/PT1000 thermal resistance of the temperature module is divided by 10 to obtain the actual temperature.
Temperature module (2/3/4 wire system) K, J, T, E, S thermocouples collected data divided by 10 is the actual temperature.
11.What is the longest distance of the network cable?
Standard class 6 lines can reach 100 meters, if you use a single core fiber can reach hundreds of meters, several kilometers.
12.Where is the location of Gkone?
Our headquarter office is in Zhengzhou,Henan Provience,in the middle of China. And our factory is in Zhengzhou and Guangzhou.
13.Could we ask for samples ?
Yes,we provide samples to be shown in the market end and tested in the lab.
14.Could we make our own brand?
Yes, we are flexible in OEM, distributor, wholesaler and agent service.
15.What is your shipping channel?
We support all the main stream courier company including: Fedex, TNT, DHL, UPS, and Aramex.
16.How long is the production time?
Usually it takes about 2-3 weeks upon receipt of advanced payment.
17.How is the warranty period for your product?
We offer 3 years warranty for our customer.
18.Do you have after sale support?
Yes we provide all the realted technical support including remote support.
And We will provide you any necessary online training and support too.