19.7.15.4 SignalsPID-6578-INPUTSIGNALS v5Table 535:I103POSCMDV Input signalsName Type Default DescriptionBLOCK BOOLEAN 0 Block of commandPOSITION INTEGER 0 Position of controllable object19.7.15.5 SettingsPID-6578-SETTINGS v6Table 536:I103POSCMDV Non group settings (basic)Name Values (Range) Unit Step Default DescriptionFunctionType 1 - 255 - 1 1 Function typeInfNo 160 - 209 - 1 160 Information number for command output19.7.16 Operation principle IP14407-1 v319.7.16.1 General M11874-3 v5IEC 60870-5-103 is an unbalanced (master-slave) protocol for coded-bit serialcommunication exchanging information with a control system, and with a data transferrate up to 38400 bit/s. In IEC terminology, a primary station is a master and asecondary station is a slave. The communication is based on a point-to-point principle.The master must have software that can interpret IEC 60870-5-103 communicationmessages.Introduction to IEC 60870–5–103 protocol M11874-6 v3IEC 60870-5-103 protocol functionality consists of the following functions:• Event handling• Report of analog service values (measurements)• Fault location• Command handlingSection 19 1MRK 511 408-UUS AStation communication708 Phasor measurement unit RES670 2.2 ANSITechnical manual