Siemens CP-8021 User Manual

System Components and Technical Data
124 Unrestricted SICAM A8000 / CP-8000 • CP-8021 • CP-8022 Manual
DC8-037-2.02, Edition 10.2017
• Engineering
─ SICAM TOOLBOX II + OPM II
─ Web engineering
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1)
from the perspective of the remote terminal unit the max. number of stations per line is not relevant
2)
external converters (V.24/V.28 ↔ V.11) are required in some cases
Note
The previously mentioned functions are described in detail in the document SICAM RTUs ▪ Ax 1703
Common Functions MODBUS.
5.5.8.2 Operating Modes
Operating mode Interface →
optional DTE
Interface signals
Unbalanced interchange circuit
(V.24/V.28) RS-232 asynchronous
X2 RXD, TXD, CTS
1)
, RTS, DCD, DTR,
DSR/VCC, GND
Balanced interface (V.11) RS-485 (2-wire)/
RS-422 (4-wire) asynchronous
X3 TXD+/RXD+, TXD-/RXD- (2-wire)
TXD+, TXD-, RXD+, RXD- (4-wire)
Balanced interface (V.11) RS-485 (2-wire)/
RS-422 (4-wire) asynchronous
X2 → CM-0829
(CM-0819
2)
)
RXD, TXD, CTS, RTS, DCD, DTR,
DSR/VCC, GND (to CM-08x9)
Unbalanced interchange circuit
(V.24/V.28) RS-232 asynchronous
X6
3)
RXD, TXD, CTS, RTS, DCD, DTR,
DSR, GND
Balanced interface (V.11) RS-485 (2-wire)/
RS-422 (4-wire) asynchronous
X6
3)
TXD+/RXD+, TXD-/RXD- (2-wire)
TXD+, TXD-, RXD+, RXD- (4-wire)
1)
not usable (reserved for SICAM TOOLBOX II)
2)
RS-422 not supported
3)
only CP-8022 (switchable mode via parameter)
Note
Details about realization of various operation modes are given in the manual SICAM RTUs Platforms -
Configuration Automation Units and Automation Networks.

Siemens CP-8021 Specifications

General

Brand	Siemens
Model	CP-8021
Category	Controller
Language	English