Interfaces are created to connect the r_keeper system with other systems (for example, with a credit card authorization acquirer server, PDS card server, hotel system Shelter, etc.).

Objects that have the Interface field in their properties can be linked with other programs.

Creating an interface using the example of connecting r_keeper with the Beer Dispensing system:

• In the Cash Stations and Devices directory, select the cash server in the tree. On the Devices tab, choose Driver List from the context menu. Select the PVRK interface driver and add it to the Drivers page;
• In the Interfaces directory, create a new interface. In the DLL Library Files properties, select the added driver in the cash server line.
  
  

Main
Code — unique identifier of the directory element in the system. Assigned automatically but can be changed manually;
Name — name of the directory element;
Status — status of the directory element;
Basic
Station — device station;
Minimal Version — minimum version of the interface DLL;
Number — numerical parameter of the interface;
CscLink.ini
Ini File name — name of the ini file for csclink.dll. Used for generating PDS card reports;
User name — username for card server login;
Password — password for card server authorization.

Interface
Auto Payment of accounts — used for automatic payment by currencies when using CRM, currency codes must be listed.
Format of the max payment— number of accounts to display at the cash station "Card Info".
Order XML — send XML with order content when requesting "Card Info";
Output mode of Non-Fiscal Payments to XML — choose how payments will be transferred when paying an order with any currency at the cash register:

• Write as discount — payments won't appear in XML. The PDS or CRM system won't have information about the amount spent by the guest: no money will be deducted if the card is debit; no bonuses will be accrued if it's a bonus card.
• Write as payment — payments will be transferred to XML and appear in PDS or CRM.

DLL Library Files
Interface library files for system cash servers;
Capabilities
Credit Card Terminal — functions as a credit card terminal;
Dispensing — interface supports dispensing operations and can function as a dispenser;
Drawer — can function as a cash drawer;
Interface — supports standard interface functionality;
Printing — supports printing operations and can function as a logical printer;
Tariffication — supports tariff calculation mechanism and can function as a rater.