GE 90-30/20/Micro I/O Data Formats , Default Conditions for Model 30 Output Modules , Diagnostic Data

GFK-0467K Chapter 2 System Operation 2-41

Table 2-7. Model 30 I/O Modules - Continued

Catalog

Number Description Pub

Number

Option Modules

IC693APU300 High Speed Counter GFK-0293

IC693CMM311 Communications Coprocessor Module GFK-0582

IC693PCM300 PCM, 160K Bytes (35KBytes User MegaBasic Program) GFK-0255

IC693PCM301 PCM, 192K Bytes (47KBytes User MegaBasic Program) GFK-0255

IC693PCM311 PCM, 640K Bytes (190KBytes User MegaBasic Program) GFK-0255

IC693ADC311 Alphanumeric Display Coprocessor GFK-0521

IC693BEM331 Genius Bus Controller GFK-1034

IC693CMM301 Genius Communications Module GFK-0412

IC693CMM302 Enhanced Genius Communications Module GFK-0695

IC693BEM320 I/O Link Interface Module (slave) GFK-0631

IC693BEM321 I/O Link Interface Module (master) GFK-0823

IC693APU301

IC693APU301 Power Mate APM Module, 1-Axis–Follower Mode

Power Mate APM Module, 1-Axis–Standard Mode GFK-0781

GFK-0840

IC693APU302

IC693MCS001/2

Power Mate APM Module, 2-Axis–Follower Mode

Power Mate APM Module, 2-Axis–Standard Mode

Power Mate J Motion Control System (1 and 2 Axis)

GFK-0781

GFK-0840

GFK-1256

IC693APU305

IC693CMM321 I/O Processor Module

Ethernet Communications Module GFK-1028

GFK-1084

I/O Data Formats

Discrete inputs and discrete outputs are stored as bits in bit cache (status table) memory. Analog

input and analog output data are stored as words and are memory resident in a portion of

application RAM memory allocated for that purpose.

Default Conditions for Model 30 Output Modules

At power-up, Model 30 discrete output modules default to outputs off. They will retain this default

condition until the first output scan from the PLC. Analog output modules can be configured with

a jumper located on the module’s removable terminal block to either default to zero or retain their

last state. Also, analog output modules may be powered from an external power source so that,

even though the PLC has no power, the analog output module will continue to operate in its

selected default state.

Diagnostic Data

Diagnostic bits are available in %S memory that will indicate the loss of an I/O module or a

mismatch in I/O configuration. Diagnostic information is not available for individual I/O points.

More information on fault handling can be in Chapter 3, “Fault Explanations and Correction.”