Emerson numatics g3 series - Bit Mapping Rules; Valve Side; Discrete I;O Side

G3SeriesPROFIBUS‐DPTechnicalManual
Page 54
TDG3PTTM1-2EN 02/09
Subject to change without notice
www.numatics.com/g3
Bit Mapping Rules
The bit mapping for a G3 manifold varies with the physical configuration of the manifold. The following is a
breakdown of the bit mapping rules associated with the Numatics valve manifold.
Valve Side
1) Solenoid coil outputs are connected to the valve coils using the Z-Boards
™
.
2) The valve solenoid coil output portion of the total output size is adjustable from 0 to 4 bytes.
3) Solenoid coil output addressing begins at the 1
st
manifold station nearest the node using “14” coil 1
st
and
then, if applicable, the “12” coil, and continues in ascending order away from the communication node.
4) Each manifold station allocates 1 or 2 output bits. This is dependent on the Z-Board
™
type installed.
A single Z-Board
™
allocates 1 output bit. A double Z-Board
™
allocates 2 output bits.
5) Z-Boards
™
can be used in any arrangement (all singles, all doubles, or any combination) as long as output
group No. 1 and output group No. 2 bits do not overlap (i.e. combinations of Z-Boards
™
could exist where
the physical configuration of the manifold could exceed the output capacity.
Discrete I/O Side
Outputs
1) The Sub-Bus output byte size portion is self-configuring in byte increments, after an output module is
installed on the Sub-Bus and power is applied.
2) Outputs are mapped consecutively by module. The output bits from the 1
st
module will be mapped directly
after the bits from the valve coils. The output bits from the second module will be mapped directly after
the output bits from the 1
st
module and so on.
Inputs
1) The Sub-Bus input byte size portion is self-configuring in byte increments, after an input module is
plugged into back plane and power is applied.
2) Inputs are mapped consecutively by module. The input bits from the 1
st
module will be mapped at byte 0.
The input bits from the second module will be mapped directly after the input bits from the 1
st
module and
so on.
Single solenoid valves can be used with double Z-Boards
TM
. However,
one of the two available outputs will remain unused.
NOTE!