Xylem Sensus Modbus RTU User Manual page 2

User Manual
Modbus RTU
Option module for PolluTherm
2. Safety instructions
 The installation, electrical connection and commissioning the module should be made
by qualified specialists only.
 The Modbus RTU option modules may only be used for the PolluTherm meters
otherwise the modules or the heat meter could be damaged.
 The included lithium battery and the meter battery must not be recharged,
short-circuited, put in contact with water or exposed to temperatures of more than 80°C.
 Battery and module waste may only be disposed at suitable collection centers
for professional waste disposal.
 The communication modules are delivered in the form of circuit board. Is highly
recommended that normal static precautions be taken in handling and assembly of this
module to prevent damage and/or degradation which may be induced by ESD. Failure
to observe proper handling and installation procedures can cause damage. ESD
damage can range from subtle performance degradation to complete device failure.
3. Installation the option module in the Modbus RTU network
3.1. Status LED and Status Button functionality
The placement of the Status LED and Status Button is shown on the picture below.
Picture 2: Status Button and Status LED placement on the Modbus RTU option module
Status LED is signalizing every Modbus RTU communication event. Status LED is blinking on during request
receiving and response sending.
Press the button, then power on the module and hold the button pushed longer than 15 seconds to reset
device to factory settings (set Modbus Slave ID to default value 1, the Update Rate parameter to default
value 10 min and the communication interface to the defaults parameters – 9600 bps baud rate and 8N1
data format).
Status Button Status LED
M H 6123 INT, page 2