AS-Interface (Actuator Sensor Interface, ASi) is an industrial networking solution (physical layer, data access method and protocol) used in PLC, DCS and PC-based automation systems. It is designed for connecting simple field I/O devices (e.g. binary ON/OFF devices such as actuators, sensors, rotary encoders, analog inputs and outputs, push buttons, and valve position sensors) in discrete manufacturing and process applications using a single two-conductor cable.
AS-Interface is an 'open' technology supported by a multitude of automation equipment vendors. The AS-Interface has been an international standard according to IEC 62026-2 since 1999.
AS-Interface is a networking alternative to the hard wiring of field devices. It can be used as a partner network for higher level fieldbus networks such as Profibus, DeviceNet, Interbus and Industrial Ethernet, for whom it offers a low-cost remote I/O solution. It is used in automation applications, including conveyor control, packaging machines (e.g. Schubert's), process control valves, bottling plants, electrical distribution systems, airport baggage carousels, elevators, bottling lines and food production lines (e.g. 2SFG). AS-Interface provides a basis for Functional Safety in machinery safety/emergency stop applications. Safety devices communicating over AS-Interface follow all the normal AS-Interface data rules. The AS-Interface specification is managed by AS-International, a member funded non-profit organization located in Gelnhausen/Germany. Several international subsidiaries exist around the world.

View More On
  1. Melisbb

    Blcok Access to the DiskStation Web Interface

    Hi All, Is it possible to blocking users or admins access to the Synology web UI from browser? I want to hide or blocking Login Portal for users. Control Panel > Applications > DSM > User > Deny not working :( Control Panel > Login Portal > Advanced > Access Control Profile > Edit > IP...
  2. Robbie

    Interface Bonding & Kernel IP routing table issue

    I've got an insidious issue with my Active/Standby Bond that provides 10GbE to one switch and a fault-only 1GbE link to another switch. Mostly it works ok with links going up and down and to the DSM GUI it reports either 10GbE or 1GbE being used by the bond, depending on which link/links are...
  3. BobW

    Tandoor Recipes Organizer Interface (TROI) on a Synology Disk Station

    Hi, Came across this great docker container and would like to share it with you guys (if anyone is interested). It is well documented in a pdf. More info can be found here: tandoor.
  4. Y

    Failed to run containers

    Hi, I hope you are well, my question is as follows: I recently changed the network interface of my dsm from 192xxx to 10. After then, no container will operate. When I connect to portainer and click on any container, a pop-up window with the old address 192.xxxx appears. Could you help tell me...
  5. C

    VMM, Open vSwitch and Bonded Interface

    Hi All, I have installed VMM on my DS920 and about to click through but I need to enable open vswitch. As I have had a bonded interface for as long as i can remember, will this cause an issue??? What are other doing in terms of the dual nic's and setup ? Cheers capthedge
  6. L

    DSM 7.0 Will DSM7 allow specific apps or ports to route through a specific Network Interface / VPN?

    Will DSM finally add this much needed, much requested feature? No clue why Synology has ignored the user base and not added this in DSM6
  7. S

    Read Only Permission Web Interface

    Hi All, Is it possible to give a user read only access to the Synology web management portal? I specifically want to allow a user to be able to log into the web portal and view the Beep Control options under Hardware & Power as I need the user to be able to check what the cause of the beep is...
  8. Z

    Question Reverse Proxy for subdomain redirects to main DSM interface

    Hello everyone, I've had a DS1019+ for several months and everything has been working just great. I have set DSM to be available on two non-standard ports (12344 and 12345) and have reverse proxy set up so that I can access it at Web Hosting, Domain Name Registration | Mydomain and all other...
  9. tekguru

    HTTPS interface and Microsoft Edge

    Is it just me, or....... but when I try to access the HTTPS UI logon page in Microsoft Edge the browser does not allow it to be viewed at all. I know other browsers say it is insecure but give you an option to proceed, it seems Edge (on Mac at least) doesn't. If there is a work around I can't...
  10. Imcon

    Solved How to reconnects PC/Physical Server when Certificate changes?

    Recently activated Network Interface bond (LAN1+LAN2 but the IP stays the same) but from then the Active Backup machines are out of connection to the DSM (to theit tasks at Active Backup). Any idea how to reconnect them from NAS side? I guess it will be possible by reinstalling/reactivating...
  11. akahan

    https access to Tautulli web interface?

    I am having trouble getting https (SSL) (with Let's Encrypt certs) access to the Tautulli web interface to work under Docker. Here's what I have done; where did I go wrong? Installed Tautulli, web access is at port 8181, and using http it works just fine using...
  12. WST16

    John Gruber is viscerally offended

    I like John Gruber. An old one but I remembered it when we spoke about bad design the other day…