Glossary - Siemens 3VF Series Communications Manual

Communication System Manual

5.2 Glossary

- 3RK1 interface module
- AS-i:
- Baud:
- Bus configuration:
- DP:
- DP/3WN6:
- Gateway:
- GSD:
- I/O area:
- Octet:
- PLC:
- PROFIBUS node:
- Reaction time:
114
The 3RK1 interface module translates the PROFIBUS-DP data format
to the circuit-breaker data format and vice-versa. There are two
3RK1 interface modules:
for 3WN6 circuit-breakers and 3RK1002 (also known as
DP/3WN1, 3WS1) for 3WN1 and 3WS1 circuit-breakers.
Actuator-Sensor-interface. The AS-i is a supplier-independent
networking system for simple, usually binary, actuators and sensors.
It is possible to connect this interface to all the standard automation
systems in the SIMATIC family using various master modules. For
further information, please refer to Catalog ST PI 96: "PROFIBUS &
AS-Interface - Fieldbus Components" (order no. E86060-K4660-
A101-A1)
Unit of measurement for transmission rate. A rate of 1 baud means
that 1 bit ("0" or "1") is transferred per second.
Definition of 3WN6 device-specific data, the bus address of 3WN6
and the 3WN6 data area (I/O area) in the bus master
Decentralized Peripherals.
Name of the interface which translates the 3WN6 data profile to the
PROFIBUS-DP profile and vice versa. The DP/3WN6 interface was
previously also known as the "DP/RS485" or "kNS/DP" interface.
A gateway is used to translate data formats of one system (e.g.
PROFIBUS protocol) to data formats of another system (e.g. 3WN6
data profile) The term "interface" or "interface module" is used in this
documentation instead of the term "gateway".
Device data file
This refers to the storage area of the bus master (e.g. SIMATIC S5
PLC) which is reserved for communication between the circuit-
breaker and the bus master when the 3WN6 circuit-breaker is
connected to PROFIBUS-DP. The size of the memory area reserved
for 3WN6 is 12 bytes (octets).
The term "octet" is a synonym of the term "byte" and stands for 8
binary data units (bits).
Programmable Logic Controller
A field device which is connected to PROFIBUS
The total time required for the processing and execution of a
command from the bus master. Please refer to Appendix A.5 for the
3WN6 reaction times on the bus.
© Copyright Siemens AG 1998. All rights reserved.
3RK1000 (also known as DP/3WN6)
Appendix
Version 1.0 (08/98)