Micromod Micro-DCI: 53SL6000 Single Loop Controller Manual de usuario descargar pdf (Pagina 50)

Table 5-12. Discrete Output Selections

(ProG Menu

→

do Module)

Prompt Description Dft

inV1 -

inV8

Discrete Output Invert

0-on:

it indicates a value of zero in

the corresponding do(1-8)

registers and generates an

inactive output (typically an

open contact).

1-on:

it indicates a value of one in

the corresponding do(1-8)

registers and generates an

active output (typically a

closed contact).

1-on

5.7 RS-232 and RS-485 Options

Both, the RS-232 and RS-485 communications op-

tions provide network connectivity between a host

device, typically a personal computer, and the con-

troller via the Micro-DCI Datalink protocol.

Before communications can be established be-

tween the host and the controller, both devices

must be set for the same data rate and protocol

options. Controller communications parameters

for network connectivity are provided in the conF-

SYS module described in Table 5-13. The

Micro-DCI Datalink protocol is covered in Appen-

dix C.

The RS-232 or RS-485 communications module

plugs into the rear of the controller as shown in

Figure 2-12. It is secured to the backplane with a

single mounting screw.

Table 5-13. System (SYS) Prompts

(conF Menu

→

SYS Module)

Prompt Description (see Datalink prompts) Dft

Instrument Addrsss

(Datalink)

It is the address assigned to this

controller on the datalink. Valid

addresses are from 0 - 31. No two

controllers can have the same

address on the datalink.

bAud

Baud Rate

(Datalink)

This value is set to match the data

transfer rate of the datalink. Valid

menu selections are:

110 4800

300 9600

600 19.2K

1200 14.4K

2400 28.8K

9600

Table 5-13. System (SYS) Prompts

(conF Menu

→

SYS Module)

Prompt Description (see Datalink prompts) Dft

dLE

Datalink Enable

(Datalink)

Selections are as follows:

on:

Allows controller datalink

communication.

oFF:

The controller is not permitted

to communicate over the

datalink.

dLP

Datalink Parity

(Datalink)

Selections are as follows:

on:

It indicates parity generation

and checking for even parity

serial byte protocol is enabled.

oFF:

It indicates no parity protocol.

dLS

Datalink Stuffing

(Datalink)

Selections are as follows:

on:

Selects F&P byte stuffing, which

inserts a NULL (00) byte after

every SOH (7E hex) that is not

the beginning of a message.

This permits user written

communications software to

determine the number of bytes

to expect in a response

message.

oFF:

Disables datalink stuffing.

Not Communications Parameters

tAG

Tag Name

Allows a 10 character tag to be

assigned to the controller. Four

characters maximum can be

displayed at any one time. Using

the engineer mode shift right push

button, the ten character positions

are displayed as follows:

0123 3456 6789

Characters are selected for each

position with the scroll

forward/backward push buttons.

b-FP

oPtA Contains an identification code

provided by the module resident in

slot A at the rear of the controller

case. Codes are as follows:

None.

192:

2DI/2DO module.

193:

Single universal analog input

module.

194:

Dual universal analog input

module.

oPtb Contains an identification code

provided by the module resident in

slot B at the rear of the controller

case. Codes are the same as for

oPtA above.

53SL6000 Instruction Manual Section 5. Inputs/Outputs (I/O)

5-6

1 2 ... 45 46 47 48 49 50 51 52 53 54 55 ... 137 138

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