ABB AC500-eCo V3 - Page 126

Serial interface Pin Signal Description
1 RTS Request To Send
DCE is ready to accept data from the DTE
2 TxD Transmit data (output)
3 GND Common Ground
4 RxD Receive data (input)
5 CTS Clear To Send (input)
DCE is ready to accept data from the DTE
Cable length
The maximum possible cable length of a serial connection subnet within a segment depends on
the transmission rate.
RS-232 for point-to-point connection:
Parameter Value
Transmission rate 9.6 kbit/s to 115.2 kbit/s
Maximum cable length On request
6.2.4.3 State LEDs
Signal Color State Description
TxD Yellow ON (blinking) Transmitting
RxD Yellow ON (blinking) Receiving
6.2.4.4 Technical data
The system data of AC500-eCo V3 apply Ä Chapter 6.4 “System data AC500-eCo V3”
on page 154
Only additional details are therefore documented below.
Parameter Value
Protocol Programmable with Automation Builder e.g.
Modbus RTU / CAA SerialCom via serial inter-
faces
Interface Serial interface
Serial interface standard EIA RS-232
Potential separation Yes, from the CPU, 500 V DC
Serial interface parameters Configurable via software
Modes of operation Data exchange
Transmission rate 9.6 kbit/s to 115.2 kbit/s
Protocol Programmable
Device specifications
Option boards > TA5141-RS232I - RS-232 serial adapter isolated option board
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