Eaton easyE4 User Manual

6. Function blocks
6.1 Manufacturer function blocks
Offset calculation for addressing marker words
Offset = MW (x-1)*2
Offset calculation for addressing marker double words
Offset = MD (x-1)*4
Parameter error due to incorrect number or offset definition
Incorrect parameters are indicated whilst the program is running via the E1 - E3 error
outputs.
Parameter errors of this kind occur, for example, if the number of elements to be
transferred exceeds the source or destination range, or when, due to an offset error,
the source and destination range are outside of the available marker range.
Transfer function blocks always copy or initialize marker
bytes, and never marker words or double words. This transfer
behavior does not depend on the values at I1 and I2 (source
address and destination address). You can copy a marker
double word, e.g., MD 12 to MD 96, by copying 4 marker bytes
with the function block.
The function block and its parameters
Function block inputs
 Description Note
(bit) 
EN
1: Activates the function block.
The checkbox for the
Function block release by EN is neces-
sary
parameter must first be enabled
T_
Triggering the transfer on a rising edge

(DWord) 
I1
Source address
Offset to marker byte MB01 when using
for the definition one of the afore-
mentioned operands
I2
Destination address
Offset to marker byte MB01 when using
for the definition one of the operands
stated in the table
NO
Number of elements to be initialized or
copied.
Integer value range
Operating mode INI: 1…+1024 Byte
Operating mode CPY: 1…+1024 Byte
Assigning operands
You can assign the following operands to the function block inputs that are numeric
inputs.
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Eaton easyE4 Specifications

General

Brand	Eaton
Model	easyE4
Category	Relays
Language	English