3 use in automate systems – Rockwell Automation 61C501 AutoMax/AutoMate 115V Input Module User Manual

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4Ć3

4.2.3

Restrictions on Use in DCS 5000/AutoMax

Systems

This section describes limitations and restrictions on the use of this

module in DCS 5000/AutoMax systems.
The 115V AC/DC Input module is a read only module. Attempts to

write to it will cause a bus error (severe system error). The following

are examples from programs that write to the module and should

therefore be avoided:
a. Referencing the module from a coil in a ladder logic task.
b. Referencing the module on the left side of an equal sign in a LET

statement in a control block or BASIC task.

c. Referencing the module as an output in a control block function.

4.3

Use In AutoMate Systems

In AutoMate systems, the 115V AC/DC Input module is accessed

using the MOVMR instruction block. This block reads the data from

the module and places it into a destination register, which,

depending upon the register chosen, can then be accessed as a

cannot be used in a remote rack in AutoMate systems.
Register 3765 in an AutoMate 30 Processor and register 17565 in an

AutoMate 40 Processor indicate whether there is a missing or

improperly seated module in the rack. The slots in the rack

correspond to the bits in the register, which are set to 1 (on) when a

module is missing or seated improperly. A set bit in either register

3765 or 17565 will not, however, affect the execution of the

application program.

4.3.1

Ladder Diagram Example

The following sample MOVMR instruction block is used to access a

115V AC/DC input module located in slot 4 of an AutoMate rack that

contains an AutoMate 30 Processor. The data from the module will be

stored in register 2000.

.00

MOVMR

LENGTH:

ADDRS:

I/O-M:

B,H,W,S:

DEST:

VALUE:

400000
M

2000

Note that the coil address shown in the example is not valid for an

AutoMate 40 Processor.