Rexroth Indramat CLM1.4, Manual

Page: 176 / 274

CLM01.4-LAP-01VRS Interfaces
9-13
DOK-CONTRL-CLM01.4LAP1-FK01-EN-P
9.2 Serial Interfaces
General Information
The CLM’s integrated serial RS232C or RS485 interfacesupports
programming of the control via personal computer (PC) in any operating
mode.
In addition, status signals, the currently executing program and the
parameters can be requested.
Parameters can only be transferred to the control in ’Parameter’ Mode.
The interface is standardized according to DIN 66020 (CCITT V.24) or
EIA-RS232C and equipped for full duplex operation.
The data flow between the CLM and the PC is controllable via the ‘ X-ON /
X-OFF´-Protocol (software handshake) or the RTS-CTS Handshake.
Data transfer is executed in 'ASCII' format.
Connecting the Interface
RS232C - V.24 Interface:
92_1_rs2_AE.WMF
Fig. 9-9: Connection of the Serial Interface
Definition of the signal lead, according to DIN 66020:
Connection 2 = RxD (Received Data) Data Lead
Data is received via this channel.
The 'Off' condition has the logical value 'One.'
Connection 3 = TxD (Transmitted Data) Data Lead
Data are sent via this channel.
The 'Off' condition has the logical value 'One.'
Connection 5 = GND (Signal Ground) Ground Lead
This line is the common return for all signal leads.