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6-18 Using Explicit Messaging

20-COMM-E EtherNet/IP Adapter User Manual

Publication 20COMM-UM010G-EN-P

Write Multiple Parameters

ControlLogix Controller Example Ladder Logic Program to Write Multiple

Parameters Using RSLogix 5000 Software, Any Version

A Scattered Write message is used to write to multiple parameters. This

write message example writes the following values to these five parameters.

See DPI Parameter Object

on page C-16 (Class code 0x93) or Host DPI

Parameter Object on page C-30 (Class code 0x9F) for parameter

numbering.

Important:See Table 6.A on page 6-2

for limitations of PowerFlex 7-Class

and PowerFlex 750-Series drives when using DPI Parameter

Object Class code 0x93 or Host DPI Parameter Object Class

code 0x9F for explicit messaging.

Table 6.G Example Controller Tags to Write Multiple Parameters

Figure 6.19 Example Ladder Logic to Write Multiple Parameters

Important:If the explicit message scattered write must be written

continuously, then use a separate explicit message single write

for each parameter using DPI Parameter Object Class code

0x93 or Host DPI Parameter Object Class code 0x9F and

attribute A (10 decimal; see page 6-11

). Attribute A writes to

RAM—not NVS (EEPROM) memory. This example scattered

write message using attribute 0 writes to NVS. Over time,

continuous writes will exceed the EEPROM life cycle and

cause the drive to malfunction.

PowerFlex 7-Class

Drive Parameter

Write Value PowerFlex 750-Series

Drive Parameter

Write Value

141 - [Accel Time 2] 11.1 Sec. 536 - [Accel Time 2] 11.1 Sec.

143 - [Decel Time 2] 22.2 Sec. 538 - [Decel Time 2] 22.2 Sec.

105 - [Preset Speed 5] 33.3 Hz. 725 - [Zero Position] 33

106 - [Preset Speed 6] 44.4 Hz. 21555 - [Port 5: Analog In0 Hi] 5.5

107 - [Preset Speed 7] 55.5 Hz. 780 - [PTP Setpoint] -75,555

Operand Controller Tags for Write Multiple Message Data Type

XIC Execute_Scattered_Write_Message BOOL

MSG Scattered_Write_Message MESSAGE

1 2 ... 139 140 141 142 143 144 145 146 147 148 149 ... 295 296

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