This document contains additional information for

	IF-Module Modbus (2097809) 
	IF Module Modbus Stratos (2097808)

1. General
==========


To ensure the functionality of the module the following firmware versions (or higher are necessary):

	WILO Stratos series			5.08
	WILO IP-E/DP-E			3.00
	WILO IL-E/DL-E			4.00
	WILO MVIE/MHIE/HELIX VE (1,1..4 kW)	3.00
	WILO MVIE/HELIX VE (5,5..7,5 kW)	4.00

Pumps IL-E...BF do not support the WILO standard Modbus register set.
Documentation is available on request.
	
2. Commissioning
==============
Chapter 8.2 of the operation Manual describes the setting of the transmitted data frame.

Modbus RTU defines a frame with 8 data bytes, a parity bit and one stop bit. The parity bit can be either even (E), odd (O) or no parity (N). In case of no parity, two stop bits are used.
	The code for the frame formats are as follows:


	2	8,N,1  	- for non standard environment
	3	8,N,2
	6	8,E,1   	- default value
	10	8,O,1

	detailed coding:

	Bit	function
		
	0	Stopbits 0=1  1=2
	1	Databits 7=0, 8 = 1
	3..2	Parity 0=N, 1= E 2=O	



3. hints
========

When a valid set of parameters (address and A, C, E, F) is choosen, the IF-module will start up and shows the ability to communicate with the "<==>" symbol in the pump. The symbol does not indicate the exchange of data.
If the parameter A does not appear in the menue and/or the address cannot be set above 127 please make sure that the firmware version meets the specification above.

3.1 local operation (Bus Command Timer, holding register 300)
------------------------------------------------------------------
When using the Modbus IF-Module the local menue is disabled by factory setting. The local menue can be enabled permanentely by writing the value MANUAL.
To use the local menu only when the BAS system fails, write the value SET at least every 5 minutes. The activation is stored an survives a power on reset.
 When the mechanism is no longer needed, write OFF to reset to factory setting. In case of MANUAL mode or timeout the objects for control (setpoint and others are set to "out of service".

If the BAS fails (does not rewrite SET within 5 minutes) the E54 is displayd at the pump. Then the menue can be entered to adjust the settings


WILO SE
Dortmund 2010-11-12
www.wilo.com/automation