Numatics G3 Series EtherNet/IP Technical Manual
Also see for G3 Series EtherNet/IP: Technical manualTechnical manual
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G3 Series EtherNet/IP Technical ManualPage 75TDG3EPTM1-1EN 05/09Subject to change without noticewww.numatics.com/g3Bit Mapping RulesThe bit mapping for a G3 manifold varies with the physical configuration of the manifold. The following is abreakdown of the bit mapping rules associated with the Numatics valve manifold.Valve Side1) 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 fixed at 4 bytes.3) Each solenoid coil output has an associated status input bit (refer to the section labeled, “Output ShortCircuit Protection”, on page 20 for functional details). The solenoid coil status input size is fixed at 4bytes.4) Solenoid coil output addressing begins at the 1st manifold station nearest the node using “14” coil 1st andthen, if applicable, the “12” coil, and continues in ascending order away from the communication node.5) 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.6) Z-Boards ™ can be used in any arrangement (all singles, all doubles, or any combination) as long as outputgroup No.1 and output group No. 2 bits do not overlap (i.e. combinations of Z-Boards ™ could exist wherethe physical configuration of the manifold could exceed the output capacity.Discrete I/O SideOutputs1) The Sub-Bus output byte size portion is self-configuring in byte increments, after an output module isinstalled on the Sub-Bus and power is applied.2) Outputs are mapped consecutively by module. The output bits from the 1st module will be mappeddirectly after the bits from the valve coils. The output bits from the second module will be mappeddirectly after the output bits from the 1st module and so on.Inputs1) The Sub-Bus input byte size portion is self-configuring in byte increments, after an input module isplugged into back plane and power is applied.2) Inputs are mapped consecutively by module. The input bits from the 1st module will be mapped directlyafter the status bits from the valve side. The input bits from the second module will be mapped directlyafter the input bits from the 1st module and so on.3) All of the modules have associated internal status bits, which will affect the total value of input bytes..4) When a module has discrete and status inputs, the status bits are mapped after the discrete input bits.Single solenoid valves can be used with double Z-Boards TM. However,one of the two available outputs will remain unused.NOTE! |
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