Reference Manual

ManualsBrandsDelta Tau ManualsControllersDelta Tau PMAC VME

341

342

343

344

345

346

347

348

349

350

PMAC 2 Software Reference

332 PMAC Program Command Specification

In order to access the auxiliary registers of a MACRO node n, bit n of I1000 must be set

to 1.

If the slave node returns an error message or the slave node does not respond within 32

servo cycles, PMAC will note an error condition. Bit 5 of global status register X:$0003

is set to report such a MACRO auxiliary communications error. Register X:$0798 holds

the error value. It is set to $010000 for a timeout error, or $xxxxFE if the slave node

reports an error, where xxxx is the 16-bit error code reported by the slave node.

Example

MACROAUXREAD1,24,P1 ; Read Node 1 Parameter 24 into P1

MXR5,128,M100 ; Read Node 5 Parameter 128 into M100

See Also

On-line commands MACROAUX, MACROAUXREAD, MACROAUXWRITE

Program commands MACROAUXWRITE

MACROAUXWRITE

Function

Write MACRO auxiliary parameter value

Type

Background PLC (no motion program, PLC0, or compiled PLC)

Syntax

MACROAUXWRITE{NodeNum}{ParamNum}{Variable}

MXW{NodeNum}{ParamNum}{Variable}

where:

• {NodeNum} is an integer constant from 0 to 15 specifying the slave number of the

node.

• {ParamNum} is an integer constant from 2 to 253 specifying the auxiliary

parameter number for this node.

• {Variable} is the name of the PMAC variable (I, P, Q, or M) from which the

parameter value is to be copied.

Remarks

This command permits PMAC to write auxiliary register values to slave nodes across the

MACRO ring. The command must specify the node number of the slave node, the

auxiliary parameter number at this node, and the name of the PMAC variable from which

the value comes.

Only one auxiliary access (read or write) of a single node can be done on one command

line.