ABB AquaMaster 3 - MODBUS Connection

AquaMaster 3
Electromagnetic flowmeter 3 Electrical Installation
User Guide OI/FET2XX–EN Rev. E 25
3.4 MODBUS Connection
This section describes the AquaMaster 3 MODBUS serial data communications option and must be used
in conjunction with:
 MODBUS Tables Supplement (COI/FET2XX/MOD/TBL–EN)
 Programming Guide (COI/FET2XX–EN)
Detailed specifications and recommendations for using and implementing MODBUS communications are
contained in the following external publications:
 MODBUS over Serial Line – Specification and Implementation Guide V1.02. Dec 20, 2006.
http://www.modbus.org/. Refer to this guide for hardware, cabling, grounding and shielding on
MODBUS.
 MODBUS Application Protocol Specification V1.1b. Dec 28, 2006 – http://www.modbus.org/.
Note. A USB Comms lead driver is required when using WEBC2101 – download from
www.ftdichip.com/FTDrivers.htm
Fig. 3.13 MODBUS Connection
B
G
A
CE
D
F
USB
Connector
Part No
WEBC2101
Pin MODBUS
AD0
BD1
CNot used
DNot used
ENot used
FNot used
G Common
MODBUS Connector
Connector B20434
available for
hard-wired installations